Does it exist? I am not even trying to get a battery-powered portable DAC\AMP with spdif with descent sound anymore (I mean something better than ibasso, which I consider rather entry-level). I am ready to get a mini-dac\amp (a size of h140 or something like that) with external 12V supply and...

I wonder if somebody who owns Ed8, could tell how much time of burn-in they require to "open up", and in general whether one can expect such thing (i.e. serious difference between "fresh" and "after burn-in"). My experience with 900 pro tells me that we are talking about 300+ hours here, but...

I have Ultrasone 900 Pro which I like in terms of overal tonal balance and presentation. They have been modded by myself (sorbotane sheet inside for bass and resonance control, + partial Kees mod) and recabled (hardwired with Jena). Now, I like what I finally got in the bass area - fast, deep...