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...

So I've been testing out this m903 with some different headphones for the last few days. I wanted to share my results with you guys since you all helped me when I needed information.   First of all, the m903 is sick. The conversion is stellar and the feature set is unbeatable for a DAC. If...

I really want to skip all the mediocre stuff and only have to shell out once for a DAC + Headphone Amp + Headphones.   This will be for mixing music. The twist is that this is only for a "travel" rig that I will be using with a laptop. So, I need to have easy connectivity to a MBP Retina and...