What's new?

21 September 2020

Siegfried Linkwitz´ design provides listening joy on Barbados Island, see LXmini gallery

10 September 2020

Find new pictures of beautiful LX521 setups in the gallery

29 August 2020

Artist Jim AVIGNON enjoyed listening to LXsirius . He is the creative painter of the Jim Avignon special edition of LXsirius.

29 August

PCBs for ORION ASP and LX521(.3) ASP have restocked. Check out here.

20 July 2020

We can offer another audition for Linkwitz LX speaker systems in Germany Saturday 25.07.2020 near Stuttgart Airport. Maximum 2 persons per time slot, due to pandemic regulations. Contact info@magicLX521.com for your individual time slot

22 June 2020

We received more requests to experience Linkwitz loudspeakers and are looking forward to

the next OpenHouse auditions in Stuttgart and San Francisco.

Dates have not been set, yet. Number of participants will be limited to be in line with pandemic regulations.

You may put yourself on the reservation list by sending an email to info@magicLX.com

27 March 2020

More LX521 variants available from magicLX.com

Perfect craftsmanship with American Walnut baffles & bridges, finished by and a 9-layer high gloss finish:

....and some sandwich top-baffles: anodized aluminum - Panzerholz

27 March 2020

LXsirius, individual Artist Edition by Jim Avignon.

Individually painted pieces of artwork: Painter and musician Jim Avignon does a limited number of individual LXsirius pairs, maximum joy for ears and eyes:

Each LXsirius pair, Jim Avignon Edition, comes with a certificate of authenticity.

Contact info@magicLX.com for details.

27 March 2020

Meet us at AXPONA , room #725, !!! cancelled !!!

01 March 2020

OpenHouse in Corte Madera

The first OpenHouse this year was (again) fully booked. We had visitors from all over the US flying in or coming over by car.

Visitors could convince themselves how well Linkwitz desigs work w i t h the room, creating a perfect soundstage illusion.

Not only in the sweet spot, but as well when wandering around in the room. Craig Allison provided some music of his own

Blues Band, so you could directly compare the recorded voice to the "real thing".

Furthermore, we were able to answer several questions from interested visitors and explain Siegfried Linkwitz`

form-follows-function design.

A big THANK YOU to Eike Linkwitz for hosting the OpenHouse with tasty food and drinks.



02 February 2020

New supplier for ORION speakers in the UK:

KJF Audio delivers ORION kits. Details will show up on the KJF website, soon.

Contact Stefan Whatcott: admin@kjfaudio.co.uk.

They also ship to other countries.

21 December 2019

LX loudspeaker audition OpenHouse near Stuttgart airport

Interested music lovers were driving/flying in from several European countries like Belgium or Estonia.

Besides getting to know Siegfried Linkwitz` design principles, we had quite some time to listen to

various music styles and experience the deep, believable and precise soundstage illusion

of LXsirius+2 and LX521.4.



Configurations in use were

In the (ca 17sqm) office room:

JRiverID > AFI-USB > Oppo HA1 as DAC > PowerBox 6pro NCore precision analog > LXsirius+2



In the living room

Linn Acourate DS > PowerBox 6pro NCore Master&Follower, LX621.4, american.walnut, Be tweeters



10 November 2019

Visitors were happy , to find Eike, Greg and Ed demoing the LXsirius+2 (dull white and dark anthracite color)

at this years Burning Amp festival in Ft Mason / San Franciso:

09 November

This years 4th OpenHouse was again fully booked, find some pictures here

Next OpenHouse:

Corte Madera Early 2020 , details TBD, you may already make a reservation via email

Eike Linkwitz once more likes to invite you to an unique LX loudspeaker demonstration at the home of Linkwitzlab in Corte Madera. Enjoy the realistic music presentation of LXsirius, LXsirius+2 , LX studio or LX521.4. Frank Brenner will be availabe for Q&As. Send an email for number of place reservations at either 10:00 am, 11:30 am or 1:00 pm and for driving directions. Please state your preference in listening to a specific model of LX speakers (LXmini, LXsirius, LXsirius+2 , LX studio or LX521.4). Repeaters are welcome!

28 October 2019

published an obituary on Siegfried Linkwitz´ work and achievements (September 2019 issue).



22 September 2019

See LXsirus playing in a music paradise (record store "EINKLANG") and photos from OpenHouse in Stuttgart.

28 August 2019

Rich Isaacs enjoyed our previous OpenHouse, see here , COPPER magazine #92.

27 July 2019

This years 3rd OpenHouse was again fully booked, find some pictures here



27 April 2019

today, Eike Linkwitz hosted this years second Open House, continuing Siegfrieds legacy of making his achievements accessible to music lovers. The event was ,again, fully booked. Some participants were driving 10 hours by car to enjoy this special event! As always, an OpenHouse is a great opportunity to exchange thoughts, get answers and to convince oneself on what really matters for a believable / live-like rendering of acoustical scenes. This was also an opportunity to listen to the new LXsirius, the slim full range loudspeaker. Demoed in a LXsirius+2 configuration We switched between Jazz, Classical, Blues and Rock on LXsirius,

LXsirius+2 (=with LXsub2 woofers) ,

LXstudio (= with LXsub4 woofers) and

LX521.4 Craig presented well recorded music as well as rarities and gems. But as well tracks , that are still available,

e.g Charlie Hadens bass solo (from 2:20 on) in "Els Segadors" with Carla Bley et al. The interested audience got familiar to the design principles of these outstanding loudspeaker systems. Time for discussion and questions. And of course time to hear these unconventional loudspeakers perform, fascinating the audience with their stable, live-like illusion of musical performance, that does n o t collapse when leaving the "sweet spot". As the music could not be identified as "coming from a speaker" , we were asked several times, if LX521 or LXsirius+2 was on duty. Even, when listening to LXsirius+2 , some music lovers believed, that LX521 was playing. LXsirius+2 was recognized as slim speaker with big performance. Visitors could convince themselves by wandering around in the room: The phantom imaging remains stable, no matter where you listen from. No Room correction at work, no fancy room treatment, no boutique cables. But intelligent engineering and a huge wealth of experience allowed the design of these transducers, that work so well with the room.

Setup details : Tablet PC > AFI-Reclocker > PowerBox 6pro Ncore (Master) > LXsirius

Laptop > AFI-Reclocker > PowerBox 6pro Ncore (Master&Follower) > LX521.4

Oppo CD Player > SPDIF > PowerBox 6pro Ncore (Master&Follower) > LX521.4

Oppo CD Player > SPDIF RCA > PowerBox 6pro Ncore (Master) LXsirius, LXsirius+2 , LXstudio Generally, PowerBox 6pro Ncore allows filter loading for all Linkwitz LX models.

However, for the OpenHouse each system got its own PowerBox 6pro Ncore to allow a quick jump between LX521 and LXsirus and their sources.

Eike prepared tasteful finger food and drinks. James took the right pictures to capture the setting in Corte Madera. We have already bookings of repeaters, that want again join us at the next OPEN HOUSE, this summer. Check out this news page, as well as www.magicLX.com to be noted about future Open House dates.

22 February 2019

LX521.4 may be built as comfort DIY kit,

top-baffles, baffle supports and bridges

fully assembled in American Black Walnut

veneered multi-layer birch ply.



V-Frame woofer kit in dark anthracite HDF.

Fully hidden cabling is already inserted in top-baffles

and in woofers side panels.



Bridges assembled with 45deg miters





20 February 2019

There is a new, enhanced ASP for LX521.4 available. Based on physically small feedback loops with

single OpAmps and tight component tolerances for improved L/R channel matching.

A two step rumble filter for phono application may be switched into the signal path.







19 January 2019

Jan 19th 2019, Eike Linkwitz hosted the first Open House of the year, continuing Siegfrieds legacy of making his achievements accessible to music lovers. The event was fully booked! As always, a great opportunity to exchange thoughts, get answers and to convince oneself on what really matters for a believable / live-like rendering of acoustical scenes. This was also an opportunity to listen to the first pair of just launched LXsirius, the slim full range loudspeaker. We switched between Jazz, Classical, Blues and Rock on LXsirius,

LXsirius+2 (=with LXsub2 woofers) ,

LXstudio (= with LXsub4 woofers) and

LX521.4 A special highlight was listening to the CD of Craig Allisons Blues Band. Craig was here and partially singing along. Everyone could instantly recognize how well timbre, body and tonality of "recorded" and "live" match on this LX521.4 system. The interested audience got familiar to the design principles of these outstanding loudspeaker systems. Time for discussion and questions. And of course time to hear these unconventional loudspeakers perform, fascinating the audience with their stable, live-like illusion of musical performance, that does n o t collapse when leaving the "sweet spot". Visitors could convince themselves by wandering around in the room: The phantom imaging remains stable, no matter where you listen from.

No Room correction at work, no fancy room treatment, no boutique cables. But intelligent engineering and a huge wealth of experience allowed the design of these transducers, that work so well with the room.

Setup details : Tablet PC > USB cable > PowerBox 4180 > LXsirius

Laptop > AFI-Reclocker > PowerBox 6pro Ncore (Master&Follower) > LX521.4

Oppo CD Player > SPDIF > PowerBox 6pro Ncore (Master&Follower) > LX521.4

Oppo CD Player > analog RCA to XLR cables > PowerBox 6pro Ncore precision analog > LXsirius, LXsirius+2 , LXstudio

Eikes fantastic catering (home-made Brownies and more) was a pleasure to everyone.







Check out this news page, as well as www.magicLX.com to be noted about future Open House events.





15 December 2018

LX loudspeaker audition --- Open House in Corte Madera --- Saturday, January 19, 2019 --- from 10 am to 4 pm.



Eike Linkwitz invites you to an unique LX loudspeaker demonstration at the home of linkwitzlab in Corte Madera.

Enjoy the realistic presentation of LXmini, LXmini+2 , LX studio or LX521.4.



Frank Brenner will be availabe for Q&As.



Compared to the LXmini+2 driven from a single PowerBox the LX521.4 has obviously higher output capability at all frequencies and/or lower distortion. But in all other respects the music and acoustic scene experiences are remarkably similar. The LX521.4 gives a convincing sound illusion regardless of the type of music played and yet the speakers are revealing of every subtle detail in the recording to a mix and mastering engineer.



Send an email for number of place reservations at either 10:00 am, 11:30 am, 1:00 pm, or 2:30 pm and for driving directions.

Please state , if you are interested in listening to a specific model of LX speakers (LXmini, LXmini+2 , LX studio or LX521.4)



See you then, Eike Linkwitz

& Frank Brenner.





29 November 2018

LXmini / LXmini+2 / LXstudio may be driven by digital (DSP) or analog (ASP) signal processors.

The links above show options for DIY as well as turn-key solutions.



24 November 2018

Siegfried Linkwitz´ wife Eike continues the practice of OPEN HOUSE listening experience and sharing of thoughts at the home of "linkwitzlab".

The next OPEN HOUSE in Corte Madera will take place in early 2019 . Details tbd.





24

Floyd Toole, John Vanderkooy and Laurie Fincham found honorable words on Siegfried Linkwitz here





30 September 2018

BURNING AMP - in Ft Mason/San Francisco

SL was sorely missed. Gladly, his wife Eike Linkwitz agreed to attend the BAF.

Nelson Pass and Laurie Fincham found honoring words for SL in their speeches.

Everyone was invited to write down his individual "Thank you, Siegfried Linkwitz" in an open book.

Find more BAF 2018 news here

Siegfried Linkwitz (1935-2018).

A warm hearted freethinker, pioneer, innovator and friend passed away. It´s sad..... Frank Brenner

"Celebration of Life" for Siegfried Linkwitz, Sunday October 14, 1:30PM - 4:00PM,

at the Mill Valley Community Center ,180 Camino Alto, in Mill Valley, 8 miles north of the Golden Gate Bridge.

Everyone is welcome!.

Happy New Year 2015

to all LINKWITZ LAB speaker builders, past, present and future! In 2015 I plan to extend the LX speaker family from the analog LX521 and the digital LXmini by adding three new members: LXstudio, LX521.3 and LX521.4. This will provide an upgrade path for LXmini builders to LX521 levels and be a revisit of the LX521 using DSP for equalization and crossovers. For the LXstudio I add to the LXmini pair the two open-baffle woofers of the LX521 and use the miniDSP 4x10Hd for xo/eq. A prototype is already running and impresses me with its fast dynamics, 3D rendering and expected extension of bass. The 4-piece system provides greater flexibility in room placement than the LX521. For the LX521.3 and LX521.4 systems I plan to start out from acoustic measurements again, expecting more options in driver equalization from a DSP unit than was practical with the ASP. The LX521.3 will be a 3-way active system including the existing passive crossover, while the LX521.4 will be a 4-way active system and require an additional pair of power amplifiers. Those are my plans. Let's hear what materializes. Spread the word to your friends:

Highly realistic 3D sound reproduction from stereo is also possible in their rooms and is within their reach!

Spread the fun!

I will be there with the amazing LX521 and the new LXmini Reference Loudspeakers and demonstrate them in Room 418 each day of the show.

LX521 at 9 am, 11 am, 1 pm, 3 pm, 5 pm

LXmini at 10 am, 12 am, 2 pm, 4 pm It is time to make your travel arrangements to the Denver Tech Center, if you have not done so already. The sound you hear in Room 418 should be your reference for the show.

20 October 2013

Assemblies - A listing of sources for full assemblies and subassemblies of LX521, ORION and PLUTO loudspeakers





16 October 2013

Links - International Conference on Spatial Audio





15 October 2013

Rocky Mountain Audio Fest - 2013, Oct. 11-13 ------- Handout

I gave 10 minute talks about *** Stereo is a Magic Trick *** in room 418

Friday: 2 pm, 5 pm and Saturday: 11 am, 2 pm, 5 pm and Sunday: 11 am, 2 pm

RMAF brought over 400 visitors to our room giving them an auditory experience and appreciation of stereo they never could have had before the advent of the LX521. I surprised myself several times about the speaker's bass output capabilities when hearing new material that visitors brought. We shocked more than one well known loudspeaker designer by the transparency, clarity and dynamics of close to live-like sounds produced by these speakers, and by the believability of an auditory scene devoid of loudspeakers. It was a most enjoyable magic trick, people got lost in the music and many listeners came back to our room for more. As one person wrote to me afterwards: "Your room at the show was 'Hotel California' - the room where people kept entering but never left." The speakers were assembled from a Madisound flat-pack of wood parts. We used the Madisound assembled and tested ASP. The 12 drivers are all SEAS designs and Olav Arntzen, R&D manager at the time, was more than pleased to hear what his products allowed me to develop. John Stone, US representative of SEAS, played an important role by leaning on R&D for accomplishing certain driver modifications that were needed in open baffle applications. We used a BelCanto (CD2) CD player with built-in preamp and volume control to drive the ASP. Connected to it were two Emotiva (XPA-5) 5-channel amps with 200W/channel output, driving bottom and top woofers separately, midranges and tweeters with 4 channels per side.





15 October 2013

Videos taken by Linear Integrated Systems at the Burning Amp Festival - 2013 (The audio is severely clipped in my talk)

stereophile reports a slow burn at 12 noon, but attendance was merely 10% down by the end of the day compared to last year.





