Hi All, new HD800 S owner and forum member here. I have been so engrossed in these forums reading about various DACs and amps, cables, balanced/unbalanced...it's been fun. I haven't gotten any work done all week.
Apogee Groove vs Audioquest Dragonfly Red:
I thought I would contribute a bit about my brief experience with these headphones. So far, I have tried them with two portable dac/amps, the Apogee Groove and the Dragonfly Red. I came away with the following conclusion after extensive A/B testing. The Dragonfly Red sounds more transparent and clear than the Apogee Groove, but it doesn't get loud enough for a lot of songs I tried. The Apogee Groove sounds pretty decent, but it's a tiny bit more tame with the sound stage and also a little less detailed than the Dragonfly Red. The Apogee Groove does drive the HD800S very well, with it getting louder than I need on any music I threw on. Bass feels stronger with the Apogee Groove. I think the "constant current drive" they are using in the Apogee Grove is working pretty well for the HD800S, but the DAC is better in the Dragonfly Red. The Apogee Groove uses a 28bit ESS Sabre DAC, the Dragonfly Red uses one of the newer 32bit ESS Sabre32 DACs with bit perfect volume control. Apogee also makes a Groove "Anniversary Edition" in gold or silver that uses the same 32bit DAC that the Dragonfly Red uses, so that would be the best of both worlds - but they charge a ridiculous $600 for it, double what the regular Groove costs. I would grab the anniversary edition in a heartbeat if I found it used for around $300. I have settled on the regular Apogee Grove as my portable solution to use with my android phone and the HD800S.
Seeking Advice about a desktop DAC/AMP:
Now...I'm currently looking for a nice desktop dac/amp in the $500 range that would be a step up from the portable solutions I tried above. So far, the Grace Design m9xx/m900 and the Schiit Audio Jotunheim have caught my eye. The impression I get after reading about them is that the Grace m9xx has a better DAC and the Schiit Jotunheim has a better amp. I do like that the Jotunheim provides a fully balanced solution at this price range, letting me use that XLR 4 cable with my HD800S and experience the benefits of balanced audio (assuming there are audible benefits and it's not just the placebo affect). People have claimed that the Jotunheim isn't that great of a match with the original HD800, but I didn't read anything specifically about the HD800S. I also found out about the iFi micro iDSD Black Label today and it looks intriguing. It could be an option as well, but I haven't done my research on it yet. Anybody have any advice for me between these three?
Ultimately my goal will be to get the new Sennheiser HDVD 820 that was just announced since that seems to be the ideal matching with the HD800S, but I'm going to have to work my way up to that and really enjoy the journey.
Other questions about the HD800S:
I bought a used pair from someone at a great price. They were in great condition but I'm noticing that the clamp strength and the right side ear cup height adjustment seems to be pretty loose. Anybody else have this issue? I assume they all become like that with regular use, but I would have liked a bit more resistance to the height adjustment on the right side, specially since the left side is nice and tight. Whenever I try to adjust them while on my head the right side falls most the way down before I can even move the left side one notch. Any tips on tightening that up again? Very minor issue, but thought I'd ask.
Lastly, my serial number is 0926#. The guy I bought them from said he purchased them very recently. Anybody purchase a brand new unit recently that would tell me what serial numbers they're up to now? Just trying to get an idea of how old these are.
Thanks!