hey man im looking into getting the trilogy 933 for my th-900's aswell. this is kind of a newbie question, but do i need an expensive dac with the amp? I have a portable DAP (iBasso DX100) and I know I can use it as a DAC too. Would an expensive DAC be alot better paired with this amp tho? or is that not the way works? thanks in advance for replying :)
I have tested The TH900 with the Trilogy 933 and a Raysonic CD228 - a Naim HDX/ XPS2 supply /w NAS and it always sounds fantastic. (I also use an Astell & Kern player with Rx MK3 amp for portable playing)
Sure, with 24 bit audio files there can be a little more dynamic range, but I have been exceptionally pleased with 16 bit audio files and CD's.
I have no hesitation in saying that from what I have heard, the Trilogy 933 is a perfect pairing for the TH900's. The bass is very powerful, yet perfectly balanced in the mix and so tight/focused. It is a very musical combination that sounds equally good with rock/metal and classical/acoustic/vocals. So many amps sound good with the TH900's as they are easy enough to drive (even with a 25ohm impedance) due to the ultra high sensivity (100dba), but the Trilogy 933 just pushes them into the same category as the Sony R10's IMO.
The only downside with the Trilogy 933 is the high cost (significantly more than the headphones), but in this case I do genuinely feel you get what you pay for.
Edited by zardon - 9/9/13 at 5:39am