Quick subjective impressions:



Less of a resonance play than Purpleheart. The wood seems more solid and doesn't add color. The least colored among the different cups. More refined and more dampened than Purpleheart or Mahogany cups. Wonder if this is the effect of the denser Ebony? Noticeably smoother lower treble. Doesn't have that slight sharpness of Mahogany and to a smaller extent the Purpleheart. Small sharp peak past 10kHz. Adds a bit of definition and increases audibility of noise such as tape hiss, but this seems preferable. Overall still a member of the X00 family.



Massdrop / Fostex TH-X00 Ebony Frequency Response (0db line = 100db SPL)





Massdrop / Fostex TH-X00 Ebony CSDs