I don't believe a thread exists for this amazing device so I thought I'd create one.
First off, links to pro reviews:
My own impressions:
I've had a DragonFly since last summer and a Meridian Explorer for a bit over a month. I'm not good at reviews so I'll keep it succinct - I was never a big fan of the DF. I found it overly warm and bloomy down low and going on over 6 mos of almost daily use my opinion hasn't changed much. When others say it's tight/detailed/bright I don't hear that at all, and this is running a variety of IEMs out of it (TG334, GR07 MKII, FXZ-200, FXD-80, EPH-100). The ME is interesting. Obviously the first batch has a very high output impedance of 47 ohms, apparently that's corrected on currently shipping units (although we don't know how much). With the right tips I thought it paired pretty awesome with my TG334s, albeit a bit thin with recessed bass. But overall the sound is such that it justifies the expense of these very pricey IEMs. I can't quite say the same of the DF. Due to the nature of my work I need a compact solution that attaches to my 11" MBA.
Enter the MicroStreamer. I've had it about 5 days now with maybe 30 hours of head time. I'm in love. It seems to right the wrongs of the DF, but I can't quite say it bests the ME or will esp. once the impedance issue is corrected. My gut feeling is the MS still has an ever so slight warm/analogue thing going with it, but the bass holds up well and the whole sound is rather coherent and detailed if not a detail-meister. With the ME, I guess we'll have to wait and see... in any case, just getting the ball rolling so others can share their impressions.