I'm sitting here with the Beyer T5P along with a Burson Conductor, a Grace m903, a rMBP, and an Apogee Duet.
I cannot find one combination that sounds even the slightest bit different than the other.
I've been A/B'ing all of the amps for a few days now and I really don't even see a difference in sound quality between the Burson Conductor and the regular headphone jack on my laptop. The only thing that's different is that the Burson can push the volume louder. However, the laptop output can already push the volume so loud that you'd be in pain were you to listen for more than a few seconds. Same with the other amps.
These amps were for another test I did in another thread with Audeze and HD800. I am going to return them. But, I was considering getting a small portable amp for the T5P. However, if these $2k amps can't even make a difference at all in the T5P then why would I even spend a nickel trying to use an external amp? I know there are quite a few well recommended portable amps around here, but if the m903 and Conductor can't make a difference, do you honestly believe that anything will?
I'm not unhappy at all with the T5P sound, I'm just wondering what gives? I'm trying not to fall victim to marketing hype here...
Edited by delano22 - 8/23/13 at 5:00am