Another happy HD650 owner checking in. These things are incredible. If I could lessen the f@#$ing clamping force I'm pretty sure I'd be happy with them for the rest of their lifetime.
I'm having some issues with amping, though. The Aune T1 does okay, it has nice impact and the brightness actually does well to counteract the reduced treble. The problem here is that I also own a pair of Grados, and the Aune does not obey the 1/8th impedance matching rule... basically, it sounds fine, but I know it can be better.
I tried Asgard 2 and decided today that I'm going to send it back to Schiit. The Aune actually beats Asgard 2 in terms of impact, soundstage, and sparkle... I once read that "HD650s allow you to hear the amp. Amps are veiled, not the HD650s." So, I guess, Asgard 2 has the veil. EDIT: THIS ISN'T THE CASE ANYMORE. I highly recommend Asgard 2 for the HD650 if you're looking for a good solid state amp. The Aune sounds really thin and bright in comparison.
So I'm on the hunt for an amp:
* I prefer solid state, as I already have one tube in the signal path from the Aune T1 DAC and I'd prefer to get the same sound signature from headphones and speakers (the benefit of having the tube in the DAC).
* Low output impedance so that it can drive Grados, too.
* Musical over analytical, every time. This is why I don't want to go the O2 route. Also O2 is ugly and has a 1/8" jack which aesthetically bugs me.
Someone on Reddit recommended the Matrix M-Stage, which from my research is warm and dark which is a no-go to match with a warm, dark headphone. Audio GD NFB models have awesome reviews and a great price tag, but they're out because they don't have analog inputs and I use three separate sources.
HELP!
EDIT: PS Any recommendations for a good cheap replacement cable (aesthetic purposes), and replacement ear pads?
EDIT 2: I take it back! Asgard 2 is a wonderful amp and decided to open up at the eleventh hour. It's really smooth and hits hard. I love it.