BrotherKathos
500+ Head-Fier
I have to say I like the THX 789 with the HD6XX. I don't get the sense that they have become brighter. At least not when compared to other amps i have like the Asgard 2 which is generally referred to as a 'warm' amp. The difference is the Asgard 2 is hazier and grainy compared to the thx with the hd6xx. Thx is just as 'warm', but is also cleaner and smoother. I'd much rather have a cleaner and smoother amp that gives me less fatigue, then a duller one that just gives me hazy distortion in the background that also fatigues me after a long session. Some people like that soup though. Why those types generally gravitate towards the tubes. The thx is by far the amp I own that pairs best with everything. The magni 3 is best with hd6xx, and th asgard 2 is best with planars. The planars help manage the soup, but the planars still sound best on the thx. Just another level amp.