Yes, I really wish it (and the DX100/HDP-R10, HM-802) weren't the little monsters that they are, but they're still great for those who don't rely on pockets to carry their DAP hardware
...I just happen to be one of the DAP-users who
does rely on pockets, so...
Well I do routinely carry my HM901 in my pants pocket. Having said that I would love die for a package with the same SQ in a small package (well my wallet did died for the AK)...
Having spent more $$$ on DAPs that I will ever confess to the Mrs, I firmly believe power supply, and hence size and heat, are necessarily evils for SQ. Dx100 (and to some extend C4) was a breakthrough in that size:SQ ratio, now AK240 seems to be another big step (while AK120 failed big time). Been hoping M would be another step.
I am really curious of M's SQ at such a nice size. I managed to demo a couple Chinese android phone with the 9018k2m DAC trying to get some idea of this chip but they sounded no better than my Note 3 imo. Only takeaway is that implementation and amp stage is equally if not more important than the chip.
Without much way to anticipate/predict its sound, the M's $850 price really made this a much much tougher decision than if it would be $650.... especially with the $350 X5 that I demo'ed, is nicely built, and sounded excellent for its size/price.
Also, if the pre-order fulfillment is prioritized for local Korean market as the price is, I suspect we may receive the DX90 with dual ess9018k2m before the M.
Decisions decision....
Sorry for the incoherent babbling... I guess I've been trying to convince myself why the pre-order is a good idea after tracking this for so long... first world problem I guess!