Due to the difficulty of comparing different brands of French horn mouthpieces with each other, I’ve put together this French horn mouthpiece chart to display the measurements of some of the most popular mouthpieces all in one place.

If you’re confused about how to go about picking out a mouthpiece, see my Choosing a Mouthpiece page!

You can also find out about the different components of a mouthpiece here.

French Horn Mouthpiece Chart

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Maker Model 1- or 2- piece Thread type Rim ID Rim shape (mm) Rim Width (mm) Cup depth Cup shape Bore (mm) Alexander - silver or gold plated. Available at Alexander Alexander 4 1-piece N/A 16.5 4 18 3.7 Alexander 5 1-piece N/A 16.8 4 26 3.7 Alexander 6 1-piece N/A 17 4 29 3.7 Alexander 7 1-piece N/A 17.5 4 19 3.7 Alexander 8 1-piece N/A 17.5 4 28 3.7 Alexander 8F 1-piece N/A 17.5 4 24 3.7 Alexander 8FM 1-piece N/A 17.5 4 24 4 Alexander 8M 1-piece N/A 17.5 4 28 4 Alexander 8L 1-piece N/A 17.5 4 28 4.2 Alexander 9F 1-piece N/A 17 4 29 3.7 Alexander 9 1-piece N/A 17.5 4 31 4 Alexander 10 1-piece N/A 18 4.75 18 4.3 Alexander 11 1-piece N/A 18 4.75 26 4.3 Alexander 12 1-piece N/A 17.5 4.75 30 4.3 Alexander MY13 1-piece N/A 17 3.75 31 4.8 Alexander MY15 1-piece N/A 17.5 3.75 32 4.5 Alexander MY9 1-piece N/A 17.5 3.75 31 5.1 Alexander 21 1-piece N/A 17.5 4 26 4 Alexander 22 1-piece N/A 17.5 4 28 4 Alexander 23 1-piece N/A 17.5 4 31 4 Alexander 31 1-piece N/A 18 4.25 27 4.2 Alexander 32 1-piece N/A 18 4.25 28 4.2 Alexander 33 1-piece N/A 18 4.25 33 4.2 Alexander 41 1-piece N/A 18.5 4.75 26 4.2 Alexander 42 1-piece N/A 18.5 4.75 28 4.2 Alexander 43 1-piece N/A 18.5 4.75 29 4.2 Atkinson - silver or gold plated. Available at Atkinson Atkinson C Cup cup only Giardinelli N/A N/A N/A deep bowl 5.79 - 4.5 Atkinson D Cup cup only Giardinelli N/A N/A N/A deep V shape 5.79 - 4.5 Atkinson H Cup cup only Giardinelli N/A N/A N/A deep V shape 5.79 - 4.5 Atkinson D2 Cup cup only Giardinelli N/A N/A N/A extra deep V shape 5.79 - 4.5 Atkinson G Cup cup only Giardinelli N/A N/A N/A medium bowl 5.05 - 4.5 Atkinson G2 Cup cup only Giardinelli N/A N/A N/A deep bowl 5.05 - 4.5 Atkinson Deskant Cup cup only Giardinelli N/A N/A N/A shallow Special Order Atkinson Cantata Cup cup only Giardinelli N/A N/A N/A medium-shallow 5.79 - 4.5 Atkinson Los Angeles Style cup only Giardinelli N/A N/A N/A deep 5.79 - 4.5 Bach - silver or gold plated rim. Available at WWBW(silver) and WWBW(Gold rim). Bach 3 1 piece N/A 17.6 thin medium 4.5 Bach 7 1 piece N/A 17.25 thin medium Bach 7S 1 piece N/A 17.25 thin medium larger than 7 Bach 10 1 piece N/A 16.8 medium-wide deep Bach 10S 1 piece N/A 16.8 medium-wide deep larger than 10 Bach 11 1 piece N/A 16.55 medium-wide medium Bach 12 1 piece N/A 16.5 thin medium Bach 15 1 piece N/A 16.3 thin medium Bach 16 1 piece N/A 16.25 medium-wide deep Bach 18 1 piece N/A 16.15 thin medium Balu Musik - "Planet" cups made of brass, "Meow" cups made of stainless steel. All rims made of stainless with with gold coating, and available with polished or satin finish. Available at Balu Musik. Balu Musik Mars cup only Giardinelli N/A N/A N/A shallow Bowl 4.6 Balu Musik Le Meow cup only Giardinelli N/A N/A N/A shallow Bowl 4.6 Balu Musik Venus cup only Giardinelli N/A N/A N/A medium Medium funnel 4.8 Balu Musik Le Mezzo Meow cup only Giardinelli N/A N/A N/A medium Medium funnel 4.8 Balu Musik Jupiter cup only Giardinelli N/A N/A N/A deep Bowl/Funnel 5 Balu Musik Le Meow Meow cup only Giardinelli N/A N/A N/A deep Bowl/Funnel 5 Balu Musik Aphrodite cup only Giardinelli N/A N/A N/A Medium Medium funnel 4.8 Balu Musik A rim only Giardinelli 17.6 N/A N/A N/A Balu Musik E rim only Giardinelli 17.35 N/A N/A N/A Cantesanu - silver cup, stainless steel rim. Available at Cantesanu. Cantesanu Model-C cup cup only Giardinelli N/A N/A N/A medium bowl 4.6 Cantesanu Model-C XS rim rim only Giardinelli 17.27 round medium N/A N/A N/A Cantesanu Model-C S rim rim only Giardinelli 17.52 round medium N/A N/A N/A Cantesanu Model-C M rim rim only Giardinelli 17.72 round medium N/A N/A N/A Cantesanu Model-C L rim rim only Giardinelli 17.98 round medium N/A N/A N/A Cantesanu Model-C XL rim rim only Giardinelli 18.28 round medium N/A N/A N/A Curry - silver or gold plated. Curry 5 1-piece N/A 16.5 medium-wide funnel 4.5 Curry 5F 1-piece N/A 16.5 medium-wide convex 4.5 Curry 7 1-piece N/A 17 medium funnel 4.5 Curry 7F 1-piece N/A 17 medium convex 4.5 Curry 9 1-piece N/A 17.5 medium funnel 5.1 Curry 9F 1-piece N/A 17.5 medium convex 4.8 Denis Wick - silver or gold plated. Heavy weight versions available. Available at WWBW(silver), WWBW(gold) and WWBW(heavyweight). Denis Wick 4 1-piece N/A 18 5 deep 4.7 Denis Wick 4N 1-piece N/A 18 3.93 deep 4.7 Denis Wick 5 1-piece N/A 17.5 4.95 medium deep funnel-shaped 4.6 Denis Wick 5N 1-piece N/A 17.5 3.9 medium deep funnel-shaped 4.6 Denis Wick 6N 1-piece N/A 17.25 3.88 medium deep rounded-funnel 4.5 Denis Wick 7 1-piece N/A 17 4.5 medium deep 4.5 Denis Wick 7N 1-piece N/A 17 3.85 medium deep 4.5 Denis Wick/Paxman - silver plated. Available at WWBW and Amazon. Denis Wick/Paxman DWPAX9 1-piece N/A 16.55 4.5 medium 4.4 Denis Wick/Paxman DWPAX8 1-piece N/A 16.89 4.3 medium 4.5 Denis Wick/Paxman DWPAX7 1-piece N/A 17 4.1 medium 4.5 Denis Wick/Paxman DWPAX6 1-piece N/A 17.25 4.3 medium deep 4.5 Denis Wick/Paxman DWPAX5.5 1-piece N/A 17.4 4.3 medium deep 4.5 Denis Wick/Paxman DWPAX5 1-piece N/A 17.5 4.3 medium deep 4.6 Denis Wick/Paxman DWPAX4 1-piece N/A 18 4.3 deep 4.7 Englebert Schmid - silver plated. Available at Englebert Schmid. Englebert Schmid No. 1.0 1-piece N/A 17.5 or 18 4 shallow Funnel-shaped 4 Englebert Schmid No. 1.5 1-piece N/A 17.5 or 18 4 medium-shallow Funnel-shaped 4.2 Englebert Schmid No. 2.0 1-piece N/A 17.5 or 18 4 medium Funnel-shaped 4.4 Englebert Schmid No. 2.5 1-piece N/A 17.5 or 18 4 medium-deep Funnel-shaped 4.7 Englebert Schmid No. 3.0 1-piece N/A 17.5 or 18 4 deep Funnel-shaped 5 Englebert Schmid No. 3.5 1-piece N/A 17.5 or 18 4 extra deep Funnel-shaped 5.4 Englebert Schmid No. 4.0 1-piece N/A 17 4 shallow slightly cup-shaped 3.6 Englebert Schmid No. 4.5 1-piece N/A 17 4 medium-shallow slightly cup-shaped 3.8 Englebert Schmid No. 5.0 1-piece N/A 17 4 medium slightly cup-shaped 4 Englebert Schmid No. 5.5 1-piece N/A 17 4 medium-deep slightly cup-shaped 4.2 Englebert Schmid No. 6.0 1-piece N/A 17 4 deep slightly cup-shaped 4.4 Englebert Schmid No. 6.5 1-piece N/A 17 4 extra deep slightly cup-shaped 4.6 Englebert Schmid No. 7.0 1-piece N/A 17.5 4 shallow slightly cup-shaped 3.7 Englebert Schmid No. 7.5 1-piece N/A 17.5 4 medium-shallow slightly cup-shaped 3.9 Englebert Schmid No. 8.0 1-piece N/A 17.5 4 medium slightly cup-shaped 4.1 Englebert Schmid No. 8.5 1-piece N/A 17.5 4 medium-deep slightly cup-shaped 4.3 Englebert Schmid No. 9.0 1-piece N/A 17.5 4 deep slightly cup-shaped 4.5 Englebert Schmid No. 9.5 1-piece N/A 17.5 4 extra deep slightly cup-shaped 4.7 Englebert Schmid No. 10.0 1-piece N/A 18 4 shallow slightly cup-shaped 3.8 Englebert Schmid No. 10.5 1-piece N/A 18 4 medium-shallow slightly cup-shaped 4 Englebert Schmid No. 11.0 1-piece N/A 18 4 medium slightly cup-shaped 4.2 Englebert Schmid No. 11.5 1-piece N/A 18 4 medium-deep slightly cup-shaped 4.4 Englebert Schmid No. 12.0 1-piece N/A 18 4 deep slightly cup-shaped 4.6 Englebert Schmid No. 12.5 1-piece N/A 18 4 extra deep slightly cup-shaped 4.8 Englebert Schmid No. 13.0 1-piece N/A 18.5 4 shallow slightly cup-shaped 3.9 Englebert Schmid No. 13.5 1-piece N/A 18.5 4 medium-shallow slightly cup-shaped 4.1 Englebert Schmid No. 14.0 1-piece N/A 18.5 4 medium slightly cup-shaped 4.3 Englebert Schmid No. 14.5 1-piece N/A 18.5 4 medium-deep slightly cup-shaped 4.5 Englebert Schmid No. 15.0 1-piece N/A 18.5 4 deep slightly cup-shaped 4.7 Englebert Schmid No. 15.5 1-piece N/A 18.5 4 extra deep slightly cup-shaped 4.9 Faxx - silver plated. Available at WWBW. Faxx 2 1-piece N/A medium Faxx 11 1-piece N/A 16.55 medium-wide medium Giddings and Webster - stainless steel or titanium. Available at Giddings and Webster. Giddings and Webster FH-5 1-piece N/A 16.9 3.4 29.3 5.7 Giddings and Webster FH-1 1-piece N/A 17.2 3.8 20 4.2 Giddings and Webster FH-1.5 1-piece N/A 17.2 3.8 20 4.7 Giddings and Webster FH-2.5 1-piece N/A 17.2 3.8 25.2 4.4 Giddings and Webster FH-2.75 1-piece N/A 17.2 3.8 25.2 4.7 Giddings and Webster FH-200 1-piece N/A 17.4 3.8 25 4.6 Giddings and Webster FH-2 1-piece N/A 17.4 3.8 26 4.6 Giddings and Webster FH-3 1-piece N/A 17.8 3.6 26.6 4.4 Giddings and Webster FH-3.25 1-piece N/A 17.8 3.6 26.6 4.7 Giddings and Webster FH-3.5 1-piece N/A 17.8 3.5 25.6 4.4 Giddings and Webster FH-3.75 1-piece N/A 17.8 3.5 25.6 4.7 Giddings and Webster FH-4.25 1-piece N/A 17.9 3.5 26.5 4.4 Giddings and Webster FH-4.5 1-piece N/A 17.9 3.5 26.5 4.7 Giddings and Webster FH-310 1-piece N/A 17.9 4 26 4 Greg Black - silver plated. Available at Greg Black. Greg Black B 1-piece N/A 17.4 thin deep 5.1 Greg Black F 1-piece N/A 17.5 wide medium 4.5 Greg Black C 1-piece N/A 17.5 medium deep 5.1 Greg Black S 1-piece N/A 17.5 thin medium-deep 4.6 Greg Black J 1-piece N/A 17.75 medium deep 5.3 Greg Black BP 1-piece N/A 17.5 extra-wide cushion medium-deep V-shape 4.6 Holton Farkas - silver or gold plated. Available at WWBW(silver) and WWBW(gold). Farkas SC 1-piece N/A 16.87 medium wide shallow 4.32 Farkas MC 1-piece N/A 16.81 medium wide medium 4.62 Farkas MDC 1-piece N/A 16.21 medium wide medium deep 4.52 Farkas DC 1-piece N/A 17.07 medium deep 4.83 Farkas VDC 1-piece N/A 16.7 thin very deep 5.23 Farkas XDC 1-piece N/A 16.94 medium thin extra deep 5.23 Houghton Horns - brass, silver plate, or stainless steel. Available at Houghton Horns. Houghton H1 Cup Cup only Giardinelli N/A N/A N/A high-volume bowl shaped 4.6 Houghton H2 Cup Cup only Giardinelli N/A N/A N/A medium bowl shaped 4.5 Houghton H3 Cup Cup only Giardinelli N/A N/A N/A deep funnel/bowl 4.4 Houghton H1 Rim Rim only Giardinelli 17.25-18.25 Round with defined high point medium thin N/A N/A N/A Houghton H2 Rim Rim only Giardinelli 17.75 Semi-flat with defined high point Medium-wide N/A N/A N/A Houghton H3 Rim Rim only Giardinelli 17.75 Semi-flat with defined high point Medium-wide N/A N/A N/A Houghton Verus VX 1-piece N/A 17.25-18.25 Defined high point Medium Medium Bowl 4.6 Houghton Verus V1 1-piece N/A 17.25-18.25 Round Medium Medium Bowl 4.6 Houghton Verus V1R 1-piece N/A 17.25-18.25 Defined high point Medium-narrow Medium Bowl 4.5 Houghton Verus VX Cup Cup only Giardinelli N/A N/A N/A Medium Bowl 4.8-4.5 Houghton Verus M1H (Marching horn) 1-piece N/A 17.75 Round Medium Medium Bowl 4.4 Houghton Verus M1T (Mellophone) 1-piece N/A 17.75 Round Medium Medium-shallow Bowl 5 Houser - silver plate, stainless steel, H-Koted stainless. Available at Houser. Houser Bloom (BL) 2-piece Giardinelli 17.5-18.5 Med narrow 3.3 very deep slightly curved 5.75 - 5.1 Houser JL 2-piece Giardinelli 17-18.25 Med. narrow oval 3.25 medium-deep slightly curved 5.1 - 4.8 Houser Landsman 2-piece (.650 @ jct) Giardinelli 18 Med. narrow oval 3.25 medium-deep slightly curved 5.1-4.8 Houser Standley (GS) 2-piece Giardinelli 17.5-19 Med narrow oval 3.23 medium s-shaped 4.8 Houser Gail Williams rim only Giardinelli 18.5 semi-round, very prominent peak 3.3 N/A N/A N/A Houser Jon Ring rim only Giardinelli 17.75 Semi-flat oval 3.38 N/A N/A N/A Houser M1 rim only Giardinelli 17.5 Med round/oval 3.45 N/A N/A N/A Houser B23G rim only Giardinelli 17 Round reverse peak 3.48 N/A N/A N/A Houser Bob Ward rim only Giardinelli 17.5 Oval 3.51 N/A N/A N/A Houser Singer rim only Giardinelli 17.5 Med round 3.53 N/A N/A N/A Houser E rim only Giardinelli 17.5-18.5 Med round, defined high point 3.56 N/A N/A N/A Houser P10G rim only Giardinelli 17.5-18.5 Med round, defined inner edge 3.56 N/A N/A N/A Houser AN PHC rim only Giardinelli 17.75 Semi flat 3.61 N/A N/A N/A Houser Nikki Cash rim only Giardinelli 18 Full round 3.68 N/A N/A N/A Houser Bloom +.03W rim only Giardinelli 17.5-18.5 Med round/oval 3.78 N/A N/A N/A Houser M4 rim only Giardinelli 17.5 Med round/oval 3.84 N/A N/A N/A Houser S rim only Giardinelli 17.5-18.5 Med wide 3.84 N/A N/A N/A Houser San Francisco (SF) Cup only Giardinelli N/A N/A N/A medium bowl 4.6 Houser Kovach Cup only Giardinelli N/A N/A N/A moderately deep upper bowl - convex to throat 4.5 Houser Robert Rearden Cup only Giardinelli N/A N/A N/A medium deep upper bowl, funnel throat 4.8-5.2 Josef Klier - silver plated. Available at Josef Klier. Josef Klier 4AK 1-piece N/A 16.5 round 4 very deep V-shaped 4.8 Josef Klier 4BK 1-piece N/A 16.5 round 4 very deep V-shaped 4.6 Josef Klier 4CK 1-piece N/A 16.5 round 4 deep V-shaped 4.4 Josef Klier 4DK 1-piece N/A 16.5 round 4 medium V-shaped 4.2 Josef Klier 4EK 1-piece N/A 16.5 round 4 shallow V-shaped 4 Josef Klier 4FK 1-piece N/A 16.5 round 4 very shallow V-shaped 3.8 Josef Klier 3AK 1-piece N/A 17 round 4 very deep V-shaped 4.8 Josef Klier 3BK 1-piece N/A 17 round 4 very deep V-shaped 4.6 Josef Klier 3CK 1-piece N/A 17 round 4 deep V-shaped 4.4 Josef Klier 3DK 1-piece N/A 17 round 4 medium V-shaped 4.2 Josef Klier 3EK 1-piece N/A 17 round 4 shallow V-shaped 4 Josef Klier 3FK 1-piece N/A 17 round 4 very shallow V-shaped 3.8 Josef Klier 2AK 1-piece N/A 17.5 round 4 very deep V-shaped 4.8 Josef Klier 2BK 1-piece N/A 17.5 round 4 very deep V-shaped 4.6 Josef Klier 2CK 1-piece N/A 17.5 round 4 deep V-shaped 4.4 Josef Klier 2DK 1-piece N/A 17.5 round 4 medium V-shaped 4.2 Josef Klier 2EK 1-piece N/A 17.5 round 4 shallow V-shaped 4 Josef Klier 2FK 1-piece N/A 17.5 round 4 very shallow V-shaped 3.8 Josef Klier 1AK 1-piece N/A 18 round 4 very deep V-shaped 4.8 Josef Klier 1BK 1-piece N/A 18 round 4 very deep V-shaped 4.6 Josef Klier 1CK 1-piece N/A 18 round 4 deep V-shaped 4.4 Josef Klier 1DK 1-piece N/A 18 round 4 medium V-shaped 4.2 Josef Klier 1EK 1-piece N/A 18 round 4 shallow V-shaped 4 Josef Klier 1FK 1-piece N/A 18 round 4 very shallow V-shaped 3.8 Josef Klier 0AK 1-piece N/A 18.5 round 4 very deep V-shaped 4.8 Josef Klier 0BK 1-piece N/A 18.5 round 4 very deep V-shaped 4.6 Josef Klier 0CK 1-piece N/A 18.5 round 4 deep V-shaped 4.4 Josef Klier 0DK 1-piece N/A 18.5 round 4 medium V-shaped 4.2 Josef Klier 0EK 1-piece N/A 18.5 round 4 shallow V-shaped 4 Josef Klier 0FK 1-piece N/A 18.5 round 4 very shallow V-shaped 3.8 Josef Klier 4AM 1-piece N/A 16.5 semi-round 4 very deep bowl-shaped 4.8 Josef Klier 4BM 1-piece N/A 16.5 semi-round 4 very deep bowl-shaped 4.6 Josef Klier 4CM 1-piece N/A 16.5 semi-round 4 deep bowl-shaped 4.4 Josef Klier 4DM 1-piece N/A 16.5 semi-round 4 medium bowl-shaped 4.2 Josef Klier 4EM 1-piece N/A 16.5 semi-round 4 shallow bowl-shaped 4 Josef Klier 4FM 1-piece N/A 16.5 semi-round 4 very shallow bowl-shaped 3.8 Josef Klier 3AM 1-piece N/A 17 semi-round 4 very deep bowl-shaped 4.8 Josef Klier 3BM 1-piece N/A 17 semi-round 4 very deep bowl-shaped 4.6 Josef Klier 3CM 1-piece N/A 17 semi-round 4 deep bowl-shaped 4.4 Josef Klier 3DM 1-piece N/A 17 semi-round 4 medium bowl-shaped 4.2 Josef Klier 3EM 1-piece N/A 17 semi-round 4 shallow bowl-shaped 4 Josef Klier 3FM 1-piece N/A 17 semi-round 4 very shallow bowl-shaped 3.8 Josef Klier 2AM 1-piece N/A 17.5 semi-round 4 very deep bowl-shaped 4.8 Josef Klier 2BM 1-piece N/A 17.5 semi-round 4 very deep bowl-shaped 4.6 Josef Klier 2CM 1-piece N/A 17.5 semi-round 4 deep bowl-shaped 4.4 Josef Klier 2DM 1-piece N/A 17.5 semi-round 4 medium bowl-shaped 4.2 Josef Klier 2EM 1-piece N/A 17.5 semi-round 4 shallow bowl-shaped 4 Josef Klier 2FM 1-piece N/A 17.5 semi-round 4 very shallow bowl-shaped 3.8 Josef Klier 1AM 1-piece N/A 18 semi-round 4 very deep bowl-shaped 4.8 Josef Klier 1BM 1-piece N/A 18 semi-round 4 very deep bowl-shaped 4.6 Josef Klier 1CM 1-piece N/A 18 semi-round 4 deep bowl-shaped 4.4 Josef Klier 1DM 1-piece N/A 18 semi-round 4 medium bowl-shaped 4.2 Josef Klier 1EM 1-piece N/A 18 semi-round 4 shallow bowl-shaped 4 Josef Klier 1FM 1-piece N/A 18 semi-round 4 very shallow bowl-shaped 3.8 Josef Klier 01AM 1-piece N/A 18.5 semi-round 4 very deep bowl-shaped 4.8 Josef Klier 01BM 1-piece N/A 18.5 semi-round 4 very deep bowl-shaped 4.6 Josef Klier 01CM 1-piece N/A 18.5 semi-round 4 deep bowl-shaped 4.4 Josef Klier 01DM 1-piece N/A 18.5 semi-round 4 medium bowl-shaped 4.2 Josef Klier 01EM 1-piece N/A 18.5 semi-round 4 shallow bowl-shaped 4 Josef Klier 01FM 1-piece N/A 18.5 semi-round 4 very shallow bowl-shaped 3.8 Kelly - plastic or stainless steel. Available at Kelly. Kelly MC 1-piece N/A 16.7 medium Kelly MDC 1-piece N/A 16.3 medium deep Kelly DC 1-piece N/A 17 deep Kelly 31 1-piece N/A 17.5 deep Kelly 11 1-piece N/A 18.3 medium deep Laskey - silver or gold plated. Available at WWBW. Laskey 70J 1-piece N/A 17 round, defined high point 3.49 shallow cone-shaped 4.6 Laskey 70G 1-piece N/A 17 round, defined high point 3.49 medium bowl-shaped 4.6 Laskey 70F 1-piece N/A 17 round, defined high point 3.49 medium-deep funnel-bowl 4.6 Laskey 70E 1-piece N/A 17 round, defined high point 3.49 deep funnel-bowl 4.6 Laskey 725J 1-piece N/A 17.25 round, defined high point 3.49 shallow cone-shaped 4.6 Laskey 725G 1-piece N/A 17.25 round, defined high point 3.49 medium bowl-shaped 4.6 Laskey 725F 1-piece N/A 17.25 round, defined high point 3.49 medium-deep funnel-bowl 4.6 Laskey 75J 1-piece N/A 17.5 round, defined high point 3.49 shallow cone-shaped 4.6 Laskey 75G 1-piece N/A 17.5 round, defined high point 3.49 medium bowl-shaped 4.6 Laskey 75F 1-piece N/A 17.5 round, defined high point 3.49 medium-deep funnel-bowl 4.6 Laskey 75E 1-piece N/A 17.5 round, defined high point 3.49 deep funnel-bowl 4.6 Laskey 775J 1-piece N/A 17.75 round, defined high point 3.49 shallow cone-shaped 4.6 Laskey 775G 1-piece N/A 17.75 round, defined high point 3.49 medium bowl-shaped 4.6 Laskey 775F 1-piece N/A 17.75 round, defined high point 3.49 medium-deep funnel-bowl 4.6 Laskey 80J 1-piece N/A 18 round, defined high point 3.49 shallow cone-shaped 4.6 Laskey 80G 1-piece N/A 18 round, defined high point 3.49 medium bowl-shaped 4.6 Laskey 80F 1-piece N/A 18 round, defined high point 3.49 medium-deep funnel-bowl 4.6 Laskey 80E 1-piece N/A 18 round, defined high point 3.49 deep funnel-bowl 4.6 Laskey 825J 1-piece N/A 18.25 round, defined high point 3.49 shallow cone-shaped 4.6 Laskey 825G 1-piece N/A 18.25 round, defined high point 3.49 medium bowl-shaped 4.6 Laskey 85J 1-piece N/A 18.5 round, defined high point 3.49 shallow cone-shaped 4.6 Laskey 85G 1-piece N/A 18.5 round, defined high point 3.49 medium bowl-shaped 4.6 Laskey 85GW 1-piece N/A 18.5 Lawson silver or gold plate. No longer in production - only available used (or copies by other makers). G suffix means rim contour continues to outer rim. Lawson B23G rim only Lawson 17.5-18 reverse-peak thin N/A N/A N/A Lawson KG rim only Lawson 17.5-18 round thin N/A N/A N/A Lawson P10G rim only Lawson 17.5-18 oval medium N/A N/A N/A Lawson R10G rim only Lawson 17.5-18 cushion wide N/A N/A N/A Lawson S Cup cup only Lawson N/A N/A N/A medium bowl 4.8 Lawson F Cup cup only Lawson N/A N/A N/A medium shallow bowl 4.8 Maelstrom - stainless steel. 3-piece system, cup and shank can be chosen seperately. Two different shank taper available (standard and vortex). Available at Maelstrom. Maelstrom A rim only Giardinelli 17.6 semi-flat medium N/A N/A N/A Maelstrom E rim only Giardinelli 17.35 reverse-peak medium N/A N/A N/A Maelstrom S cup only Giardinelli/PHC N/A N/A N/A shallow bowl 4-5.8 Maelstrom MS cup only Giardinelli/PHC N/A N/A N/A medium V-shaped 4-5.9 Maelstrom M cup only Giardinelli/PHC N/A N/A N/A medium bowl 4-5.10 Maelstrom ML cup only Giardinelli/PHC N/A N/A N/A medium S-shaped funnel 4-5.11 Maelstrom L cup only Giardinelli/PHC N/A N/A N/A deep bowl/funnel 4-5.12 Marcinkiewicz - silver plated. Different outer contours/weights available. Available at WWBW: Standard, Symphonic (S suffix), Pro (CHEF), Pro (2-piece). Marcinkiewicz 1 1-piece N/A 17.9 3.75 25.5 5.79 Marcinkiewicz 3 1-piece N/A 17.9 3.75 25.2 5.4 Marcinkiewicz 5 1-piece N/A 17.75 3.95 25 5.2 Marcinkiewicz 7 1-piece N/A 17.75 3.95 24.7 5.1 Marcinkiewicz 9 1-piece N/A 17.6 3.9 24.5 5 Marcinkiewicz 11 1-piece N/A 17.6 3.9 24.2 4.9 Marcinkiewicz 13 1-piece N/A 17.4 4 24 4.7 Marcinkiewicz 15 1-piece N/A 17.4 4 23.8 4.6 Marcinkiewicz 17 1-piece N/A 17.4 4 23.6 4.4 Marcinkiewicz CH1S 1 or 2 piece Giardinelli 17.9 3.75 25.5 5.79 Marcinkiewicz CH3S 1 or 2 piece Giardinelli 17.9 3.75 25.2 5.4 Marcinkiewicz CH5S 1 or 2 piece Giardinelli 17.75 3.8 25 5.2 Marcinkiewicz CH7S 1 or 2 piece Giardinelli 17.75 3.8 24.7 5.1 Marcinkiewicz CH9S 1 or 2 piece Giardinelli 17.6 3.9 24.5 5 Marcinkiewicz CH11S 1 or 2 piece Giardinelli 17.6 3.9 24.2 4.9 Marcinkiewicz CH13S 1 or 2 piece Giardinelli 17.4 4 24 4.7 Marcinkiewicz CH15S 1 or 2 piece Giardinelli 17.4 4 23.8 4.6 Marcinkiewicz CH17S 1 or 2 piece Giardinelli 17.4 4 23.6 4.4 Marcinkiewicz CHEF1 (Cerminaro) 1 or 2 piece Giardinelli 17.4 4 39 5.79 Marcinkiewicz CHEF3 (Taylor) 1 or 2 piece Giardinelli 17.9 3.75 25.2 5.79 Marcinkiewicz CHEF5 (Cerminaro) 1 or 2 piece Giardinelli 17.4 3.25 27.6 5.79 Marcinkiewicz CHEF21 (Cox) 1 or 2 piece Giardinelli 17.4 3.6 22.3 4.6 Moosewood - silver, gold plate or plastic. Available at Atkinson. Moosewood N rim only Giardinelli 17.25 medium round 3.4 N/A N/A N/A Moosewood M1 rim only Giardinelli 17.3 medium round 3.6 N/A N/A N/A Moosewood M2 rim only Giardinelli 17.3 medium round 3.6 N/A N/A N/A Moosewood M3 rim only Giardinelli 17.3 medium round 4 N/A N/A N/A Moosewood M4 rim only Giardinelli 17.5 medium round 3.9 N/A N/A N/A Moosewood M5 rim only Giardinelli 17.5 inward cant 3.9 N/A N/A N/A Moosewood M6 rim only Giardinelli 18 medium round 3.6 N/A N/A N/A Moosewood R1 rim only Giardinelli 17.25 round 3.4 N/A N/A N/A Moosewood R2 rim only Giardinelli 17.3 round 3.6 N/A N/A N/A Moosewood R3 rim only Giardinelli 17.3 round 4 N/A N/A N/A Moosewood R4 rim only Giardinelli 17.5 round 3.9 N/A N/A N/A Moosewood FN rim only Giardinelli 17.5 medium flat 3.3 N/A N/A N/A Moosewood F1 rim only Giardinelli 17.5 medium flat 3.5 N/A N/A N/A Moosewood F2 rim only Giardinelli 17.5 medium flat 3.6 N/A N/A N/A Moosewood FL4 rim only Giardinelli 17.5 medium flat 3.9 N/A N/A N/A Moosewood W3 rim only Giardinelli 17.5 medium round 4 N/A N/A N/A Moosewood W4 rim only Giardinelli 18 medium round 4 N/A N/A N/A Moosewood W5 rim only Giardinelli 18 medium round 5 N/A N/A N/A Moosewood W6 rim only Giardinelli 18.5 medium round 5.25 N/A N/A N/A Moosewood Sanders Cushion rim only Giardinelli 18 rounded concave 6 N/A N/A N/A Moosewood A cup only Giardinelli N/A N/A N/A medium deep 5.1-4.9 Moosewood AD cup only Giardinelli N/A N/A N/A medium deep 5.1 Moosewood B cup only Giardinelli N/A N/A N/A medium 4.8 Moosewood BD cup only Giardinelli N/A N/A N/A medium shallow 4.1 Moosewood BR cup only Giardinelli N/A N/A N/A deep 4.6 Moosewood BW cup only Giardinelli N/A N/A N/A medium 4.8 Moosewood BV cup only Giardinelli N/A N/A N/A medium 4.5 Moosewood BV2 cup only Giardinelli N/A N/A N/A medium 4.5 Moosewood BA cup only Giardinelli N/A N/A N/A medium 4.5 Moosewood C cup only Giardinelli N/A N/A N/A deep 5.1 Moosewood CD cup only Giardinelli N/A N/A N/A deep 5.1 Moosewood DB cup only Giardinelli N/A N/A N/A deep 4.9 Moosewood E cup only Giardinelli N/A N/A N/A medium 5.2 Moosewood F cup only Giardinelli N/A N/A N/A medium-deep 4.6 Osmun - silver or gold plated. Available at Osmun. Osmun 7 rim only Giardinelli/PHC 17-18.25 round medium narrow N/A N/A N/A Osmun A (Alexander) rim only PHC 17-18.5 semi-round, pronounced crown 4.25 N/A N/A N/A Osmun C (Chicago) rim only Giardinelli/PHC 17-19 semi-round 4.19 N/A N/A N/A Osmun G (Geyer) rim only Giardinelli/PHC 17-19 semi-flat 3.61 N/A N/A N/A Osmun L (London) rim only Giardinelli/PHC 17-19 slightly rounded 4.29 N/A N/A N/A Osmun L6 rim only Giardinelli/PHC 17-19 slight reverse peak 3.71 N/A N/A N/A Osmun LS rim only Giardinelli/PHC 17-18.5 round, defined high point 3.49 N/A N/A N/A Osmun NY (New York) rim only Giardinelli 16.84-17.15 sharp reverse peak 3.45 N/A N/A N/A Osmun P1 rim only Giardinelli/PHC 17-19 round 3.81 N/A N/A N/A Osmun V (Vienna) rim only Giardinelli/PHC 17-19 round 3.23 N/A N/A N/A Osmun NS (Neil Sanders) rim only Giardinelli 16.94 flat, reverse peak 6.45 N/A N/A N/A Osmun ES (E. Schmid) rim only Giardinelli/PHC 17-18.5 semi-round, pronounced bite 3.99 N/A N/A N/A Osmun ESD (E. Schmid Digital) rim only PHC 17.5-18 semi-flat, reverse peak 3.99 N/A N/A N/A Osmun B cup only Giardinelli/PHC N/A N/A N/A 22.9 moderate bowl 4.9-4.3 Osmun C (Chicago) cup only Giardinelli/PHC N/A N/A N/A 25.6 fairly straight sides 5.1-4.3 Osmun CD (Chicago Deep) cup only Giardinelli/PHC N/A N/A N/A 26.3 fairly straight sides 5.1-4.3 Osmun G (Geyer) cup only Giardinelli/PHC N/A N/A N/A 23.8 fairly straight sides 5.1-4.3 Osmun H (Haydn) cup only Giardinelli/PHC N/A N/A N/A 19.8 slight S shaped 4.5 Osmun L (London) cup only Giardinelli/PHC N/A N/A N/A 23.7 concave to convex bowl 5.1-4.3 Osmun L (London Deep) cup only Giardinelli/PHC N/A N/A N/A 26.3 concave to convex bowl 5.1-4.3 Osmun V (Vienna) cup only Giardinelli/PHC N/A N/A N/A 31.5 straight sides, slightly convex 5.1-4.3 Osmun N (Navarro) cup only Giardinelli/PHC N/A N/A N/A 24.8 hybrid of London and Chicago cups 5.1-4.9 Osmun NY (New York) cup only Giardinelli N/A N/A N/A 29 slightly concave 5.79-4.9 Patterson - silver plated. Available at Patterson. Patterson Standard cup only Giardinelli N/A N/A N/A medium slightly concave 5.8-4.3 Patterson DeRosa cup only Giardinelli N/A N/A N/A medium deep 5.8-5.2 Patterson Geyer cup only Giardinelli N/A N/A N/A medium slight bowl 4.8 Patterson DeRosa 1 rim only Giardinelli 17.2 4.1 N/A N/A N/A Patterson DeRosa 2 rim only Giardinelli 17.2 3.8 N/A N/A N/A Patterson DeRosa 3 rim only Giardinelli 17.2 3.6 N/A N/A N/A Patterson DeRosa 4 rim only Giardinelli 17.2 3.3 N/A N/A N/A Paxman - silver plated. Available at Paxman. Paxman 2A 1-piece N/A 16 4 shallow 4.5 Paxman 2B 1-piece N/A 16 4 medium 4.5 Paxman 2C 1-piece N/A 16 4 deep 4.5 Paxman 3A 1-piece N/A 16.89 4.2 shallow 4.5 Paxman 3B 1-piece N/A 16.89 4.2 medium 4.5 Paxman 3C 1-piece N/A 16.89 4.2 deep 4.5 Paxman 4A 1-piece N/A 17.78 4.4 shallow 4.5 Paxman 4B 1-piece N/A 17.78 4.4 medium 4.5 Paxman 4C 1-piece N/A 17.78 4.4 deep 4.5 Paxman 5A cup only PHC N/A N/A N/A medium-shallow bowl 4.5 Paxman 5B cup only PHC N/A N/A N/A medium funnel 4.7 Paxman 5C cup only PHC N/A N/A N/A deep funnel 4.7 Paxman 5 rim only PHC 17.5 4.5 N/A N/A N/A Paxman 5X rim only PHC 17.5 3.75 N/A N/A N/A Paxman 5L rim only PHC 18 4.25 N/A N/A N/A Paxman 5XL rim only PHC 18 4 N/A N/A N/A PHC - silver plated. Available at Ebay(cups), Ebay(rims). PHC US-1 rim only PHC 17 3.5 N/A N/A N/A PHC US-2 rim only PHC 17 3.8 N/A N/A N/A PHC AN rim only PHC 17.5 3.75 N/A N/A N/A PHC AS rim only PHC 17.5 4.5 N/A N/A N/A PHC AM rim only PHC 17.5 5.1 N/A N/A N/A PHC AQ rim only PHC 17.5 5.7 N/A N/A N/A PHC AS-18 rim only PHC 18 4.25 N/A N/A N/A PHC S-18 rim only PHC 18 4.5 N/A N/A N/A PHC N rim only PHC 18.5 4 N/A N/A N/A PHC S rim only PHC 18.5 4.78 N/A N/A N/A PHC M rim only PHC 18.5 5.25 N/A N/A N/A PHC W rim only PHC 18.5 5.7 N/A N/A N/A PHC 20 cup only PHC N/A N/A N/A shallow 4.5 PHC 20AX cup only PHC N/A N/A N/A shallow 4 PHC 21 cup only PHC N/A N/A N/A medium-shallow bowl-shaped 4.8 PHC 21A cup only PHC N/A N/A N/A medium-shallow bowl-shaped 4.5 PHC 22 cup only PHC N/A N/A N/A medium slight double-bowl 5.2 PHC 22A cup only PHC N/A N/A N/A medium slight double-bowl 4.7 PHC 23 cup only PHC N/A N/A N/A medium medium funnel 5.2 PHC 23A cup only PHC N/A N/A N/A medium medium funnel 4.7 PHC 24 cup only PHC N/A N/A N/A deep more bowl-shaped 5.2 PHC 24A cup only PHC N/A N/A N/A deep more bowl-shaped 4.7 PHC 25 cup only PHC N/A N/A N/A deep deep funnel 5.2 PHC 25A cup only PHC N/A N/A N/A deep deep funnel 4.7 PHC 30 cup only PHC N/A N/A N/A very deep Viennese-style funnel 5.2 PHC 30A cup only PHC N/A N/A N/A very deep 4.8 PHC 35 cup only PHC N/A N/A N/A very deep 5.8 Pizka - silver plate. Available at Pizka. Pizka Pizka Mouthpiece 1-piece N/A 17.5 very narrow deep funnel 5 Romera Brass - silver or gold plated. Plastic rims available as well. Available at Romera Brass. Romera F rim only 16.25-18.25 semi-flat N/A N/A N/A Romera S rim only 16.25-18.25 round N/A N/A N/A D: For descant horns Romera 8D12 1- or 2-piece 16.25 F or S 4.4 12 shallow U 3.6 Romera 10D12 1- or 2-piece 16.5 F or S 4.3 12 shallow U 3.6 Romera 15D12 1- or 2-piece 16.8 F or S 4.1 12 shallow U 3.6 Romera 20D12 1- or 2-piece 17 F or S 4.3 12 shallow U 3.6 Romera 25D12 1- or 2-piece 17.25 F or S 4.1 12 shallow U 3.6 Romera 30D12 1- or 2-piece 17.5 F or S 4 12 shallow U 3.6 Romera 35D12 1- or 2-piece 17.75 F or S 4 12 shallow U 3.6 Romera 40D12 1- or 2-piece 18 F or S 4 12 shallow U 3.6 Romera 45D12 1- or 2-piece 18.25 F or S 3.8 12 shallow U 3.6 Romera 8D15 1- or 2-piece 16.25 F or S 4.4 15 shallow bowl 3.8 Romera 10D15 1- or 2-piece 16.5 F or S 4.3 15 shallow bowl 3.8 Romera 15D15 1- or 2-piece 16.8 F or S 4.1 15 shallow bowl 3.8 Romera 15D20 1- or 2-piece 17 F or S 4.3 15 shallow bowl 3.8 Romera 15D25 1- or 2-piece 17.25 F or S 4.1 15 shallow bowl 3.8 Romera 15D30 1- or 2-piece 17.5 F or S 4 15 shallow bowl 3.8 Romera 15D35 1- or 2-piece 17.75 F or S 4 15 shallow bowl 3.8 Romera 15D40 1- or 2-piece 18 F or S 4 15 shallow bowl 3.8 Romera 15D45 1- or 2-piece 18.25 F or S 3.8 15 shallow bowl 3.8 R: For double horns Romera 8R20 1- or 2-piece 16.25 F or S 4.4 20 medium-shallow bowl 4 Romera 10R20 1- or 2-piece 16.5 F or S 4.3 20 medium-shallow bowl 4 Romera 15R20 1- or 2-piece 16.8 F or S 4.1 20 medium-shallow bowl 4 Romera 20R20 1- or 2-piece 17 F or S 4.3 20 medium-shallow bowl 4 Romera 25R20 1- or 2-piece 17.25 F or S 4.1 20 medium-shallow bowl 4 Romera 30R20 1- or 2-piece 17.5 F or S 4 20 medium-shallow bowl 4 Romera 35R20 1- or 2-piece 17.75 F or S 4 20 medium-shallow bowl 4 Romera 40R20 1- or 2-piece 18 F or S 4 20 medium-shallow bowl 4 Romera 45R20 1- or 2-piece 18.25 F or S 3.8 20 medium-shallow bowl 4 Romera 8R21 1- or 2-piece 16.25 F or S 4.4 21 medium bowl 4.25 Romera 10R21 1- or 2-piece 16.5 F or S 4.3 21 medium bowl 4.25 Romera 15R21 1- or 2-piece 16.8 F or S 4.1 21 medium bowl 4.25 Romera 20R21 1- or 2-piece 17 F or S 4.3 21 medium bowl 4.25 Romera 25R21 1- or 2-piece 17.25 F or S 4.1 21 medium bowl 4.25 Romera 30R21 1- or 2-piece 17.5 F or S 4 21 medium bowl 4.25 Romera 35R21 1- or 2-piece 17.75 F or S 4 21 medium bowl 4.25 Romera 40R21 1- or 2-piece 18 F or S 4 21 medium bowl 4.25 Romera 45R21 1- or 2-piece 18.25 F or S 3.8 21 medium bowl 4.25 Romera 8R22 1- or 2-piece 16.25 F or S 4.4 22 medium bowl 4.25 Romera 10R22 1- or 2-piece 16.5 F or S 4.3 22 medium bowl 4.25 Romera 15R22 1- or 2-piece 16.8 F or S 4.1 22 medium bowl 4.25 Romera 20R22 1- or 2-piece 17 F or S 4.3 22 medium bowl 4.25 Romera 25R22 1- or 2-piece 17.25 F or S 4.1 22 medium bowl 4.25 Romera 30R22 1- or 2-piece 17.5 F or S 4 22 medium bowl 4.25 Romera 35R22 1- or 2-piece 17.75 F or S 4 22 medium bowl 4.25 Romera 40R22 1- or 2-piece 18 F or S 4 22 medium bowl 4.25 Romera 45R22 1- or 2-piece 18.25 F or S 3.8 22 medium bowl 4.25 Romera 8R23 1- or 2-piece 16.25 F or S 4.4 23 medium-deep bowl 4.4 Romera 10R23 1- or 2-piece 16.5 F or S 4.3 23 medium-deep bowl 4.4 Romera 15R23 1- or 2-piece 16.8 F or S 4.1 23 medium-deep bowl 4.4 Romera 20R23 1- or 2-piece 17 F or S 4.3 23 medium-deep bowl 4.4 Romera 25R23 1- or 2-piece 17.25 F or S 4.1 23 medium-deep bowl 4.4 Romera 30R23 1- or 2-piece 17.5 F or S 4 23 medium-deep bowl 4.4 Romera 35R23 1- or 2-piece 17.75 F or S 4 23 medium-deep bowl 4.4 Romera 40R23 1- or 2-piece 18 F or S 4 23 medium-deep bowl 4.4 Romera 45R23 1- or 2-piece 18.25 F or S 3.8 23 medium-deep bowl 4.4 Romera 8R24 1- or 2-piece 16.25 F or S 4.4 24 deep bowl 4.5 Romera 10R24 1- or 2-piece 16.5 F or S 4.3 24 deep bowl 4.5 Romera 15R24 1- or 2-piece 16.8 F or S 4.1 24 deep bowl 4.5 Romera 20R24 1- or 2-piece 17 F or S 4.3 24 deep bowl 4.5 Romera 25R24 1- or 2-piece 17.25 F or S 4.1 24 deep bowl 4.5 Romera 30R24 1- or 2-piece 17.5 F or S 4 24 deep bowl 4.5 Romera 35R24 1- or 2-piece 17.75 F or S 4 24 deep bowl 4.5 Romera 40R24 1- or 2-piece 18 F or S 4 24 deep bowl 4.5 Romera 45R24 1- or 2-piece 18.25 F or S 3.8 24 deep bowl 4.5 Romera 8R25 1- or 2-piece 16.25 F or S 4.4 25 very deep 4.8 Romera 10R25 1- or 2-piece 16.5 F or S 4.3 25 very deep 4.8 Romera 15R25 1- or 2-piece 16.8 F or S 4.1 25 very deep 4.8 Romera 20R25 1- or 2-piece 17 F or S 4.3 25 very deep 4.8 Romera 25R25 1- or 2-piece 17.25 F or S 4.1 25 very deep 4.8 Romera 30R25 1- or 2-piece 17.5 F or S 4 25 very deep 4.8 Romera 35R25 1- or 2-piece 17.75 F or S 4 25 very deep 4.8 Romera 40R25 1- or 2-piece 18 F or S 4 25 very deep 4.8 Romera 45R25 1- or 2-piece 18.25 F or S 3.8 25 very deep 4.8 V: For Vienna horns Romera 8V20 1- or 2-piece 16.25 F or S 4.4 20 shallow V 4 Romera 10V20 1- or 2-piece 16.5 F or S 4.3 20 shallow V 4 Romera 15V20 1- or 2-piece 16.8 F or S 4.1 20 shallow V 4 Romera 20V20 1- or 2-piece 17 F or S 4.3 20 shallow V 4 Romera 25V20 1- or 2-piece 17.25 F or S 4.1 20 shallow V 4 Romera 30V20 1- or 2-piece 17.5 F or S 4 20 shallow V 4 Romera 35V20 1- or 2-piece 17.75 F or S 4 20 shallow V 4 Romera 40V20 1- or 2-piece 18 F or S 4 20 shallow V 4 Romera 45V20 1- or 2-piece 18.25 F or S 3.8 20 shallow V 4 Romera 8V21 1- or 2-piece 16.25 F or S 4.4 21 medium-shallow V 4.25 Romera 10V21 1- or 2-piece 16.5 F or S 4.3 21 medium-shallow V 4.25 Romera 15V21 1- or 2-piece 16.8 F or S 4.1 21 medium-shallow V 4.25 Romera 21V21 1- or 2-piece 17 F or S 4.3 21 medium-shallow V 4.25 Romera 25V21 1- or 2-piece 17.25 F or S 4.1 21 medium-shallow V 4.25 Romera 30V21 1- or 2-piece 17.5 F or S 4 21 medium-shallow V 4.25 Romera 35V21 1- or 2-piece 17.75 F or S 4 21 medium-shallow V 4.25 Romera 40V21 1- or 2-piece 18 F or S 4 21 medium-shallow V 4.25 Romera 45V21 1- or 2-piece 18.25 F or S 3.8 21 medium-shallow V 4.25 Romera 8V22 1- or 2-piece 16.25 F or S 4.4 22 medium V 4.25 Romera 10V22 1- or 2-piece 16.5 F or S 4.3 22 medium V 4.25 Romera 15V22 1- or 2-piece 16.8 F or S 4.1 22 medium V 4.25 Romera 22V22 1- or 2-piece 17 F or S 4.3 22 medium V 4.25 Romera 25V22 1- or 2-piece 17.25 F or S 4.1 22 medium V 4.25 Romera 30V22 1- or 2-piece 17.5 F or S 4 22 medium V 4.25 Romera 35V22 1- or 2-piece 17.75 F or S 4 22 medium V 4.25 Romera 40V22 1- or 2-piece 18 F or S 4 22 medium V 4.25 Romera 45V22 1- or 2-piece 18.25 F or S 3.8 22 medium V 4.25 Romera 8V23 1- or 2-piece 16.25 F or S 4.4 23 medium V 4.4 Romera 10V23 1- or 2-piece 16.5 F or S 4.3 23 medium V 4.4 Romera 15V23 1- or 2-piece 16.8 F or S 4.1 23 medium V 4.4 Romera 23V23 1- or 2-piece 17 F or S 4.3 23 medium V 4.4 Romera 25V23 1- or 2-piece 17.25 F or S 4.1 23 medium V 4.4 Romera 30V23 1- or 2-piece 17.5 F or S 4 23 medium V 4.4 Romera 35V23 1- or 2-piece 17.75 F or S 4 23 medium V 4.4 Romera 40V23 1- or 2-piece 18 F or S 4 23 medium V 4.4 Romera 45V23 1- or 2-piece 18.25 F or S 3.8 23 medium V 4.4 Romera 8V24 1- or 2-piece 16.25 F or S 4.4 24 deep V 4.5 Romera 10V24 1- or 2-piece 16.5 F or S 4.3 24 deep V 4.5 Romera 15V24 1- or 2-piece 16.8 F or S 4.1 24 deep V 4.5 Romera 24V24 1- or 2-piece 17 F or S 4.3 24 deep V 4.5 Romera 25V24 1- or 2-piece 17.25 F or S 4.1 24 deep V 4.5 Romera 30V24 1- or 2-piece 17.5 F or S 4 24 deep V 4.5 Romera 35V24 1- or 2-piece 17.75 F or S 4 24 deep V 4.5 Romera 40V24 1- or 2-piece 18 F or S 4 24 deep V 4.5 Romera 45V24 1- or 2-piece 18.25 F or S 3.8 24 deep V 4.5 Romera 8V25 1- or 2-piece 16.25 F or S 4.4 25 very deep V 4.8 Romera 10V25 1- or 2-piece 16.5 F or S 4.3 25 very deep V 4.8 Romera 15V25 1- or 2-piece 16.8 F or S 4.1 25 very deep V 4.8 Romera 25V25 1- or 2-piece 17 F or S 4.3 25 very deep V 4.8 Romera 25V25 1- or 2-piece 17.25 F or S 4.1 25 very deep V 4.8 Romera 30V25 1- or 2-piece 17.5 F or S 4 25 very deep V 4.8 Romera 35V25 1- or 2-piece 17.75 F or S 4 25 very deep V 4.8 Romera 40V25 1- or 2-piece 18 F or S 4 25 very deep V 4.8 Romera 45V25 1- or 2-piece 18.25 F or S 3.8 25 very deep V 4.8 Shilke - silver or gold plated. Available at WWBW(silver) and WWBW(gold). Schilke 27 1-piece N/A 16.25 thin medium-shallow 4.5 Schilke 28 1-piece N/A 16.15 shallow 3.7 Schilke 29 1-piece N/A 17.53 medium medium 4.4 Schilke 30 1-piece N/A 17.03 round wide medium deep 4.4 Schilke 30B 1-piece N/A 16.92 flat thin medium bowl 4.6 Schilke 30C2 1-piece N/A 17.03 medium 5 Schilke 31 1-piece N/A 17.14 medium-wide deep V-shaped 4.7 Schilke 31B 1-piece N/A 17.4 wide medium bowl 4.6 Schilke 31C2 1-piece N/A 17.43 thin deep 4.6 Schilke 32 1-piece N/A 17.83 5.6 Siegfried's Call - bronze-coated stainless steel. Available at Siegfried's Call. Siegfried's Call SCCR rim only Giardinelli 17.5-18.5 wide oval wide Siegfried's Call SCTR rim only Giardinelli 17.25-18.5 oval medium Siegfried's Call SCUTR rim only Giardinelli 17.25-18.5 slight oval thin Siegfried's Call Rachel Drehmann rim only Giardinelli 17.75 Siegfried's Call SCSB cup only Giardinelli N/A 30 fairly straight sides 4.8-5.2 Siegfried's Call SCRD cup only Giardinelli N/A medium bowl 4.3 Siegfried's Call SCCW cup only Giardinelli N/A deep funnel 4.4 Stork - silver plated. Available at WWBW - see each row for specific link. Available at: WWBW C-series Stork C 1-piece N/A 16.9 reverse peak 3.4 - 4 deep V-shaped 5.79-4.3 WWBW-CM series Stork CM 1-piece N/A 16.9 reverse peak 3.4 - 4 medium bowl 5.79-4.3 WWBW-CS series Stork CS 1-piece N/A 16.9 reverse peak 3.4 - 4 shallow funnel 5.79-4.3 WWBW CA-series Stork CA 1-piece N/A 17.5 reverse peak 3.4 - 4 deep V-shaped 5.79-4.3 WWBW CMA-series Stork CMA 1-piece N/A 17.5 reverse peak 3.4 - 4 medium bowl 5.79-4.3 WWBW CSA-series Stork CSA 1-piece N/A 17.5 reverse peak 3.4 - 4 shallow funnel 5.79-4.3 WWBW CB-series Stork CB 1-piece N/A 17.7 reverse peak 3.4 - 4 deep V-shaped 5.79-4.3 WWBW CMB-series Stork CMB 1-piece N/A 17.7 reverse peak 3.4 - 4 medium bowl 5.79-4.3 WWBW CSB-series Stork CSB 1-piece N/A 17.7 reverse peak 3.4 - 4 shallow funnel 5.79-4.3 WWBW Myers Stork Myers 1-8 1-piece N/A 16.8 reverse peak 2.9 extra deep straight sides 5.79 - 5 WWBW Wekre Stork Wekre 1-piece N/A 17.3 defined inner edge, semi-flat 3.2 29.3 bowl 5 - 4.9 WWBW - Orval Stork Orval 4 1-piece N/A 16.6 defined inner edge, semi-round 3.3 31.8 very bowl shaped 4.6 Stork Orval 4 1/4 1-piece N/A 16.8 defined inner edge, semi-round 3.3 32.6 very bowl shaped 4.6 Stork Orval 4 1/2 1-piece N/A 16.9 defined inner edge, semi-round 3.4 32.6 very bowl shaped 4.6 Stork Orval 4 3/4 1-piece N/A 17.1 defined inner edge, semi-round 3.4 32.6 very bowl shaped 4.6 Stork Orval 5 1-piece N/A 17.3 defined inner edge, semi-round 3.4 32.6 very bowl shaped 4.6 Stork Orval 5 1/4 1-piece N/A 17.4 defined inner edge, semi-round 3.4 32.6 very bowl shaped 4.6 Stork Orval 5 1/2 1-piece N/A 17.7 defined inner edge, semi-round 3.4 32.6 very bowl shaped 4.6 Stork Orval 5 3/4 1-piece N/A 17.8 defined inner edge, semi-round 3.4 32.6 very bowl shaped 4.6 Stork Orval 6 1-piece N/A 17.9 defined inner edge, semi-round 3.4 33.2 very bowl shaped 4.6 Thompson Edition - silver or gold plate. Available at Thompson Edition. Thompson Edition T1 2-piece Giardinelli 16.8 medium thin 24.3 24 shallow, bowl 4.4 Thompson Edition T2 2-piece Giardinelli 16.8 medium thin 24.3 25.2 medium bowl 4.8 Thompson Edition T3 2-piece Giardinelli 16.8 medium thin 24.3 26.2 fairly deep 5.2 Tilz - silver plate. Available at Tilz. Tilz 302-2 1 piece N/A 17.5 medium round medium deep 4 Tilz 302-3 1 piece N/A 17.5 defined inner edge deep 4 Tilz 302-7 1 piece N/A 18 medium round deep 4.2 Tilz 302-8 1 piece N/A 17.5 medium round medium deep 4 Tilz 302-22 1 piece N/A 17.5 defined inner edge medium deep 4 Tilz 302-23 1 piece N/A 18 defined inner edge medium deep 4.2 Tilz 302-29 1 piece N/A 17.5 medium round medium deep 4 Tilz 302-30 1 piece N/A 18 medium round medium deep 4.2 Tilz 34-8 1 piece N/A 17.5 medium round medium deep 3.7 Tilz 34-9 1 piece N/A 17.5 medium round deep 3.7 Tilz 34-K 1 piece N/A 18 medium round medium deep 3.8 Tilz 34-10 1 piece N/A 18 round shallow 4.2 Tilz 34-12 1 piece N/A 18 round deep 4.2 Tilz 34-15 1 piece N/A 17.5 medium round deep 3.7 Tilz 34-8 F 1 piece N/A 17.5 medium round medium shallow 3.7 Tilz 34-9 F 1 piece N/A 17.5 medium round medium deep 3.7 Tilz McWilliam 1 1 piece N/A 17.5 medium round medium wide medium deep 4.4 Tilz McWilliam 1W 1 piece N/A 17.7 medium round medium wide medium deep 4.4 Tilz McWilliam 2 1 piece N/A 17.5 medium round medium wide medium shallow 4.2 Tilz McWilliam 2W 1 piece N/A 17.7 medium round medium wide medium shallow 4.2 Tilz McWilliam 3 1 piece N/A 17.5 medium round medium wide shallow 4 Tilz McWilliam 3W 1 piece N/A 17.7 medium round medium wide shallow 4 Tilz McWilliam 4 1 piece N/A 18 medium round medium wide medium deep 4.4 Tilz McWilliam 4W 1 piece N/A 18.2 medium round medium wide medium shallow 4.4 Warburton - silver plate. Available at Warburton. Warburton ES 1 piece N/A 17-17.8 semi-round medium extra shallow bowl 4.2-4.6 Warburton S 1 piece N/A 17-17.8 semi-round medium shallow bowl 4.6-4.8 Warburton M 1 piece N/A 17-17.8 semi-round medium medium slight S-shape 4.6-5 Warburton MD 1 piece N/A 17-17.8 semi-round medium medium deep bowl/funnel 5.3-4.8 Warburton D 1 piece N/A 17-17.8 semi-round medium deep bowl/funnel 5.8-5.1 Warburton DV 1 piece N/A 17-17.8 semi-round medium deep V-shape 5.8-5.3 Warburton Capps 2 piece Giardinelli semi-round medium deep Slight V shape 5.3-4.8 Harrison Wedge - silver plate or stainless steel. Available at Wedge. Harrison Wedge 70S 1 piece N/A 17 asymmetric-oval 4 shallow double-oval 4.6 Harrison Wedge 70M 1 piece N/A 17 asymmetric-oval 4 medium double-oval 4.6 Harrison Wedge 70D 1 piece N/A 17 asymmetric-oval 4 deep double-oval 4.6 Harrison Wedge 725S 1 piece N/A 17.25 asymmetric-oval 4 shallow double-oval 4.6 Harrison Wedge 725M 1 piece N/A 17.25 asymmetric-oval 4 medium double-oval 4.6 Harrison Wedge 725D 1 piece N/A 17.25 asymmetric-oval 4 deep double-oval 4.6 Harrison Wedge 75S 1 piece N/A 17.5 asymmetric-oval 4 shallow double-oval 4.6 Harrison Wedge 75M 1 piece N/A 17.5 asymmetric-oval 4 medium double-oval 4.6 Harrison Wedge 75D 1 piece N/A 17.5 asymmetric-oval 4 deep double-oval 4.6 Harrison Wedge 775S 1 piece N/A 17.75 asymmetric-oval 4 shallow double-oval 4.6 Harrison Wedge 775M 1 piece N/A 17.75 asymmetric-oval 4 medium double-oval 4.6 Harrison Wedge 775D 1 piece N/A 17.75 asymmetric-oval 4 deep double-oval 4.6 Harrison Wedge 80S 1 piece N/A 18 asymmetric-oval 4 shallow double-oval 4.6 Harrison Wedge 80M 1 piece N/A 18 asymmetric-oval 4 medium double-oval 4.6 Harrison Wedge 80D 1 piece N/A 18 asymmetric-oval 4 deep double-oval 4.6 Harrison Wedge 825S 1 piece N/A 18.25 asymmetric-oval 4 shallow double-oval 4.6 Harrison Wedge 825M 1 piece N/A 18.25 asymmetric-oval 4 medium double-oval 4.6 Harrison Wedge 825D 1 piece N/A 18.25 asymmetric-oval 4 deep double-oval 4.6 Harrison Wedge C7BW 1 piece N/A asymmetric Harrison Wedge MWA-M3 1 piece N/A 17.25 asymmetric-round 4.5 medium deep double oval 4.85 Harrison Wedge MWB-M3 1 piece N/A 17.25 asymmetric-round 4.5 medium deep double-oval 4.5 Harrison Wedge B10 1 piece N/A 17 asymmetric 4.5 deep double oval 4.5 Harrison Wedge GC10 1 piece N/A 17.2 asymmetric-reverse peak 3.85 deep double oval 4.9 Harrison Wedge GC8 1 piece N/A 17.2 asymmetric-reverse peak 3.85 deep double oval 5.1 Harrison Wedge GC12 1 piece N/A 17.2 asymmetric-reverse peak 3.85 deep double oval 4.8 Harrison Wedge Eric Reed 1 piece N/A 17.27 asymmetric 4.2 medium shallow double oval Harrison Wedge John Putnam 1 or 2 piece PHC 18.3 asymmetric 5 deep double cup U on V 4.7 Harrison Wedge 17XXN rim only PHC/Giardinelli 17 asymmetric/oval 3.5 N/A N/A N/A Harrison Wedge 17XN rim only PHC/Giardinelli 17 asymmetric/oval 3.75 N/A N/A N/A Harrison Wedge 17N rim only PHC/Giardinelli 17 asymmetric/oval 4 N/A N/A N/A Harrison Wedge 17M rim only PHC/Giardinelli 17 asymmetric/oval 4.5 N/A N/A N/A Harrison Wedge 17W rim only PHC/Giardinelli 17 asymmetric/oval 4.75 N/A N/A N/A Harrison Wedge 17.25XXN rim only PHC/Giardinelli 17.25 asymmetric/oval 3.5 N/A N/A N/A Harrison Wedge 17.25XN rim only PHC/Giardinelli 17.25 asymmetric/oval 3.75 N/A N/A N/A Harrison Wedge 17.25N rim only PHC/Giardinelli 17.25 asymmetric/oval 4 N/A N/A N/A Harrison Wedge 17.25M rim only PHC/Giardinelli 17.25 asymmetric/oval 4.5 N/A N/A N/A Harrison Wedge 17.25W rim only PHC/Giardinelli 17.25 asymmetric/oval 4.75 N/A N/A N/A Harrison Wedge 17.5XXN rim only PHC/Giardinelli 17.5 asymmetric/oval 3.5 N/A N/A N/A Harrison Wedge 17.5XN rim only PHC/Giardinelli 17.5 asymmetric/oval 3.75 N/A N/A N/A Harrison Wedge 17.5N rim only PHC/Giardinelli 17.5 asymmetric/oval 4 N/A N/A N/A Harrison Wedge 17.5M rim only PHC/Giardinelli 17.5 asymmetric/oval 4.5 N/A N/A N/A Harrison Wedge 17.5W rim only PHC/Giardinelli 17.5 asymmetric/oval 4.75 N/A N/A N/A Harrison Wedge 17.75XXN rim only PHC/Giardinelli 17.75 asymmetric/oval 3.5 N/A N/A N/A Harrison Wedge 17.75XN rim only PHC/Giardinelli 17.75 asymmetric/oval 3.75 N/A N/A N/A Harrison Wedge 17.75N rim only PHC/Giardinelli 17.75 asymmetric/oval 4 N/A N/A N/A Harrison Wedge 17.75M rim only PHC/Giardinelli 17.75 asymmetric/oval 4.5 N/A N/A N/A Harrison Wedge 17.75W rim only PHC/Giardinelli 17.75 asymmetric/oval 4.75 N/A N/A N/A Harrison Wedge 18XXN rim only PHC/Giardinelli 18 asymmetric/oval 3.5 N/A N/A N/A Harrison Wedge 18XN rim only PHC/Giardinelli 18 asymmetric/oval 3.75 N/A N/A N/A Harrison Wedge 18N rim only PHC/Giardinelli 18 asymmetric/oval 4 N/A N/A N/A Harrison Wedge 18M rim only PHC/Giardinelli 18 asymmetric/oval 4.5 N/A N/A N/A Harrison Wedge 18W rim only PHC/Giardinelli 18 asymmetric/oval 4.75 N/A N/A N/A WHF - silver plate. Available at WHF. WHF J rim only WHF 16.6 - 18.2 rather sharp 3.78 N/A N/A N/A WHF U rim only WHF 16.6 - 18.2 rather sharp 3.78 N/A N/A N/A WHF TJ rim only WHF 16.6 - 18.2 rounded 3.8 N/A N/A N/A WHF E rim only WHF 16.6 - 18.2 sharp 3.82 N/A N/A N/A WHF Y rim only WHF 16.6 - 18.2 rounded 3.88 N/A N/A N/A WHF H rim only WHF 16.6 - 18.2 sharp 3.96 N/A N/A N/A WHF Z rim only WHF 16.6 - 18.2 somewhat rounded 3.96 N/A N/A N/A WHF B rim only WHF 16.6 - 18.2 rather sharp 4.04 N/A N/A N/A WHF K rim only WHF 16.6 - 18.2 rounded 4.05 N/A N/A N/A WHF M rim only WHF 16.6 - 18.2 soft 4.15 N/A N/A N/A WHF T rim only WHF 16.6 - 18.2 sharp 4.16 N/A N/A N/A WHF S rim only WHF 16.6 - 18.2 somewhat rounded 4.21 N/A N/A N/A WHF C rim only WHF 16.6 - 18.2 rather sharp 4.25 N/A N/A N/A WHF 29 rim only WHF 16.6 - 18.2 soft 4.27 N/A N/A N/A WHF F rim only WHF 16.6 - 18.2 rather sharp 4.3 N/A N/A N/A WHF ML rim only WHF 16.6 - 18.2 soft 4.47 N/A N/A N/A WHF CL rim only WHF 16.6 - 18.2 rather sharp 4.6 N/A N/A N/A H prefix: Descant horn WHF H/A cup only WHF N/A N/A N/A 18 extreme U 4 H prefix: Descant horn WHF H/B cup only WHF N/A N/A N/A 20.9 4.1 H prefix: Descant horn WHF H/C cup only WHF N/A N/A N/A 20.9 slight bowl 4.2 H prefix: Descant horn WHF H/MD cup only WHF N/A N/A N/A 22.7 rather V-shaped 3.8 D prefix: Double horn WHF D/N cup only WHF N/A N/A N/A 21.2 shallow U 4.2 D prefix: Double horn WHF D/NA cup only WHF N/A N/A N/A 23.4 4.2 D prefix: Double horn WHF D/NB cup only WHF N/A N/A N/A 23.8 4.3 D prefix: Double horn WHF D/H cup only WHF N/A N/A N/A 24.7 slight U, straighter sides 4.4 D prefix: Double horn WHF D/A cup only WHF N/A N/A N/A 25 4.4 D prefix: Double horn WHF D/K cup only WHF N/A N/A N/A 26.3 4.4 D prefix: Double horn WHF D/B cup only WHF N/A N/A N/A 27 slightly concave 4.3 D prefix: Double horn WHF D/F cup only WHF N/A N/A N/A 27 more bowl shaped 4.5 D prefix: Double horn WHF D/BA cup only WHF N/A N/A N/A 27.4 4.5 D prefix: Double horn WHF D/G cup only WHF N/A N/A N/A 29 quite concave 4.3 D prefix: Double horn WHF D/E cup only WHF N/A N/A N/A 29.5 slight S shape 4.5 D prefix: Double horn WHF D/EG cup only WHF N/A N/A N/A 29.5 4.5 D prefix: Double horn WHF D/EW cup only WHF N/A N/A N/A 29.5 4.7 D prefix: Double horn WHF D/JZ cup only WHF N/A N/A N/A 30 fairly straight sides 4.5 D prefix: Double horn WHF D/J cup only WHF N/A N/A N/A 32 4.8 D prefix: Double horn WHF D/ET cup only WHF N/A N/A N/A 33.9 4.8 W prefix: Vienna horn WHF W/H cup only WHF N/A N/A N/A 24 very shallow V 4.3 W prefix: Vienna horn WHF W/JH cup only WHF N/A N/A N/A 27.5 shallow V 4.5 W prefix: Vienna horn WHF W/TJ cup only WHF N/A N/A N/A 29.5 4.5 W prefix: Vienna horn WHF W/D cup only WHF N/A N/A N/A 30 very slightly concave 4.7 W prefix: Vienna horn WHF W/EH cup only WHF N/A N/A N/A 30.5 straight, medium funnel 4.5 W prefix: Vienna horn WHF W/E cup only WHF N/A N/A N/A 32 slightly deeper 4.7 W prefix: Vienna horn WHF W/AN cup only WHF N/A N/A N/A 32.6 more V-shaped 4.6 W prefix: Vienna horn WHF W/G cup only WHF N/A N/A N/A 35 slightly concave 4.7 W prefix: Vienna horn WHF W/F cup only WHF N/A N/A N/A 35.9 more concave 4.8 W prefix: Vienna horn WHF W/L cup only WHF N/A N/A N/A 36 4.9 W prefix: Vienna horn WHF W/V cup only WHF N/A N/A N/A 33 5 W prefix: Vienna horn WHF W/SL cup only WHF N/A N/A N/A 36 straight to concave 5.1 B prefix: Baroque horn WHF B/A cup only WHF N/A N/A N/A 21 shallow U 4 B prefix: Baroque horn WHF B/B cup only WHF N/A N/A N/A 23 4 B prefix: Baroque horn WHF B/C cup only WHF N/A N/A N/A 24.5 slight U 4 B prefix: Baroque horn WHF B/D cup only WHF N/A N/A N/A 24.7 4.4 N prefix: Natural horn WHF N/H cup only WHF N/A N/A N/A 27.5 4.6 N prefix: Natural horn WHF N/A cup only WHF N/A N/A N/A 29 shallow V 4.6 N prefix: Natural horn WHF N/B cup only WHF N/A N/A N/A 32.5 slightly concave 4.6 N prefix: Natural horn WHF N/C cup only WHF N/A N/A N/A 32.5 straighter sides 4.6 N prefix: Natural horn WHF Yamaha - silver or gold plate. Available at WWBW(silver), WWBW(gold rim). Yamaha 28B 1-piece N/A 16.87 standard medium wide semi-shallow V-shaped 3.9 Yamaha 29B 1-piece N/A 17.07 standard medium wide semi-shallow V-shaped 3.9 Yamaha 29C4 1-piece N/A 17.08 semi-flat wide medium U-shaped 3.98 Yamaha 29D4 1-piece N/A 16.88 semi-flat medium medium-deep double cup 4.5 Yamaha 30B 1-piece N/A 17.27 standard medium wide semi-shallow V-shaped 3.9 Yamaha 30C4 1-piece N/A 17.28 semi-flat medim medium U-shaped 3.98 Yamaha 30D4 1-piece N/A 17.08 semi-flat medium medium deep double cup 4.5 Yamaha 31B 1-piece N/A 17.3 standard medium-wide semi-shallow V-shaped 3.9 Yamaha 31D4 1-piece N/A 17.28 semi-flat medium medium deep double cup 4.5 Yamaha 32B 1-piece N/A 17.67 standard medium-wide semi-shallow V-shaped 3.9 Yamaha 32C4 1-piece N/A 17.48 semi-flat medium medium U-shaped 3.98 Yamaha 32D4 1-piece N/A 17.48 semi-flat medium medium deep double cup 4.5 Yamaha 33C4 1-piece N/A 17.68 semi-flat medium medium U-shaped 3.98 Yamaha 34B 1-piece N/A 18.07 standard medium-wide semi-shallow V-shaped 3.9 Yamaha 34C4 1-piece N/A 17.88 semi-flat medium medium U-shaped 3.98 Yamaha 35C4 1-piece N/A 18.08 semi-flat medium medium U-shaped 3.98 GP= gold plate Yamaha 30-GP/30-ST 1-piece N/A 17.08 standard medium medium double cup 4.4 ST= sterling silver Yamaha 31-GP/31-ST 1-piece N/A 17.28 standard medium medium double cup 4.4 Yamaha 32-GP/32-ST 1-piece N/A 17.48 standard medium medium double cup 4.4 WWBW Bacon Yamaha BACON 1-piece N/A 17.99 standard medium medium-deep V-shaped 4.5 WWBW Sommerville Yamaha SOMMERVILLE 1-piece N/A 16.93 semi-flat medium medium V-shaped 4.3

Or download the French horn mouthpiece comparison chart as a PDF file.

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If you need help deciding on a mouthpiece, I have some advice from many years of experience or feel free to drop me a line if you have a specific question.

French Horn Mouthpiece Characteristics:

Maker and Model: This should be pretty obvious. The links in this column will take you to a site where you can purchase or to the maker’s website.

1- or 2-piece and Thread Type: Is this model a complete mouthpiece, or does it have a screw rim/cup. There are various types of threads – in general they are all compatible with others of the same name (ie: PHC work with other PHC but not with any Giardinelli), although sometimes Giardinelli cups and rims will have a “step” where the rim and cup join, some people find this distracting, some don’t even notice.

Rim ID (Inner Diameter): Probably the most important measurement for how you interact with the mouthpiece, and one of the hardest to accurately compare between manufacturers. This measurement is the inner diameter of the rim taken around where the face of the rim curves in to make the cup. Different makers can measure this point at slightly different places along that curve, so although it can’t be used as an exact comparison, it’s a good place to start.

Rim Shape: Almost as important as the inner diameter is the shape of the rim. Some of the more common shapes include slightly vague descriptions like round, flat, semi-round, and semi-flat. Since these are often given by the manufacturer, the actual radius and feel can vary and is very much a personal preference. A defined high point means that the mouthpiece will often feel a little thinner (since the lips will come in contact with the highest point first) than a round or flat contour, even if the rim thickness is the same or greater. A reverse-peak will put the highest point toward the outside of the rim, which helps to “bunch” the lips in toward the center and can help a smaller ID feel a little bigger. A defined inner edge or bite means that the transition from the rim face to the inner cup is sharper (rather than rounded), and many feel that this gives better articulation (at the expense of slurs). It, like almost everything rim-related, is very much a personal preference.

Rim Width/Rim OD (Outer Diameter): Either a measure of the rim thickness itself (this will usually be around 4-6mm) or a measure of the outside diameter of the rim (which is going to be around 24mm). Similar to Inner Diameter, this measurement is not always taken at the same place from one manufacturer to another, and so it’s not always a 1-to-1 comparison. As discussed in the Rim Shape section, the contour can also have an impact on how thick a rim feels.

Cup Depth: A measure of the inside of the mouthpiece to (generally) where the bore begins. It usually starts wherever the rim ID measurement was taken (which can vary) and the ending point depends on both manufacturer and the precise cup shape, but this is still a useful place to start comparing. Whenever measurements were given by the manufacturer I used those, but many still use ambiguous terms like “medium” and “deep”.

Cup Shape: This, plus the cup depth and bore, have a great impact on the sound produced by the mouthpiece. There are a wide variety of cup shapes out there, and makers often use slightly confusing language to describe the differences. A V-shaped cup is fairly self-explanatory, as is a U-shape (also described as a cup-shaped), while a bowl shape is a U-shape with a more gradual curve. Concave, convex, and straight usually refer to the sides of the mouthpiece, as the cup transitions into the bore. While rims are important to match to your own face, a cup should be matched more to a specific horn – this is the reason many people use two-piece mouthpieces! As a very rough rule, Kruspe/8D style horns like deeper, more V-shaped cup shapes, while Geyer style horns respond better to more cup or bowl-shaped cups. More info on matching cups to horns here!

Bore: This number refers to the size of the hole at the bottom of the cup at its smallest. Bore is often expressed in drill numbers (1 (5.79mm) being the biggest, and around 20 (4.1mm) being quite small), but I’ve converted them into millimeters for consistency. A larger bore (all other things being equal) provides less resistance to air, but in return requires much more air support and more efficient breathing. Although it used to be popular to use very large bores (5.8 – 5.2mm) many horns (and players) respond better to more moderate sizes (5 – 4.6mm)The flare and length of the backbore (although not on this chart) is equally important to the blowing and intonation characteristics of a mouthpiece.

Other Things to Consider

Mouthpiece fit is incredibly important. Mouthpieces made in America are designed to fit a horn leadpipe with a Morse-0 taper (all American horns), but European horns (and mouthpieces) are built with a slightly different taper. If you are mixing European and American horns and mouthpieces, it’s worth talking to the mouthpiece maker to make sure it’s got the right taper for your horn’s leadpipe.

Heavyweight mouthpieces (or stem weights for normal-weight mouthpieces) can have a dramatic impact on the way a mouthpiece responds. They are not universally good or bad, and indeed depend on the combination of the player, horn, and mouthpiece. If you’re interested in trying one, it’s worth either getting two copies of the mouthpiece (one heavy and one normal weight) or get a stem weight that can be removed to see which actually works better.

The plating or material of the mouthpiece is another thing to consider. Make sure to read Bob Osmun’s excellent remarks about mouthpiece plating below. Silver-plated brass is the most common metal for instrument mouthpieces, and is always a good place to start for younger players.

Other options include gold plating, stainless steel, and titanium:

Gold sounds exactly the same as silver, but since gold is both less likely to cause irritation for some players and feels more “slippery”, it is preferred by some. In my experience, the gold plating can wear off after a few years (as can silver plating) so replating may be needed every few years, but this depends largely on the quality and thickness of the silver plate!

but since gold is both less likely to cause irritation for some players and feels more “slippery”, it is preferred by some. In my experience, the gold plating can wear off after a few years (as can silver plating) so replating may be needed every few years, but this depends largely on the quality and thickness of the silver plate! Stainless steel mouthpieces are made out of solid stainless steel (not plated), and the rims have a slipperiness somewhere between silver- and gold-plated brass. The sound of a stainless steel cup supposed to be a little different, as well, with a slightly faster attack and a slightly brighter sound. Some feel stainless projects better, and some think it doesn’t it – similar to heavy weight mouthpieces, for some people and instruments it works well, for others it doesn’t.

mouthpieces are made out of solid stainless steel (not plated), and the rims have a slipperiness somewhere between silver- and gold-plated brass. The sound of a stainless steel cup supposed to be a little different, as well, with a slightly faster attack and a slightly brighter sound. Some feel stainless projects better, and some think it doesn’t it – similar to heavy weight mouthpieces, for some people and instruments it works well, for others it doesn’t. Titanium is sometimes applied as a coating to stainless steel mouthpiece rims, to give them a feel slipperier than gold. Because of the plating process it is supposed to last an incredibly long time and shouldn’t need replating. Solid titanium mouthpieces are, to my knowledge, only made by one company, Giddings and Webster, and I haven’t heard much about them either good or bad – but they are costly!

This page is constantly updated as I discover new mouthpiece models and makers. If there’s something I’ve missed, or if you have questions, please contact me via email or social media!

If you’re looking for French horn lessons, I offer lessons online and in-person. You can find more information on studying with me here.