Reading all your impressions have been very informative. But if I may venture a suggestion; JPS should send someone with a Mal Valve head amp 3 to do a 009 vs abyss comparison as it apparently can drive both types of headphones. I don't know if it will have "enough" power to drive the abyss but at least we'd be getting what can be considered as the same sound signature from the amp. Otherwise we'd be comparing a 009+amp A and an abyss on amp B always and it will never end
I may have a chance to do that comparison , hopefully in 2 weeks as Mal Valve Three will be here with me. There is at least one JPS Abyss here in Thailand.
Purrin suggested that it might not be a good match but Dieter has tested and confirmed to me that it has more than enough power to do so, matching is another problem though.
If not successful I will try the Abyss with Balancing Act or EAR HP4 (using preamplifier with gain) or balanced beta 22 (using loopout function). Hope that one of them can do a good job here
SR009, HE90, SR Omega, O2 I,II may be included. I also have the HE90-Stax adapter specially made by Wiktor and I have confirmed with Dieter from Mal Valve
that it is safe to use with HE90 concerning the voltage bias. The Malvalve three also have enough power to drive HE6 as well AKG K1000 so we will see. I don't know it is a good
match for the dynamic headphones but will try with the MDR R10, Qualia, LCD3, Fostex TH900
Sorry , I don't think the Malvalve three can drive the takeT or the new Jecklin without their transformer or power supply and the Malvalve three does not have the speaker post.
However I can compare the Abyss with both takeT, new Jecklin Float (but not Stax, HE90) using my speaker amplifer (ZOTL ZH230). It should be able to test in the same setup and at
the same time between takeT vs Abyss, new Jecklin with Abyss, but not all three at the same time or new Jecklin vs takeT
DIY T2 is a good match for SR009 although the HE90 is better with this combo but it is not a direct comparison with the same amplifier. The DIY T2 in Thailand has HE90
and Stax socket. HE90 with DIY T2 is not as good as the HE90 + Aristaeus (with Genelex B759 as drivers).
Edited by kiertijai - 8/4/13 at 4:42pm