finally (and last for this), the Skysong ES9038Q2M with display and voltage-poti arrived today (see post before)->http://essabre-90xx-rpi.sfb2.com/?p=2768 ->
meanwhile i can´t determine exactly the differences between the ES9038Q2Ms like this Skysong and some green SMPCB V1.07, cause they „sound“ almost exactly the same (maybe these Skysongs are a little bit more „warm“ and not so „crispy“ like the SMPCB-versions of it (its the same with the Skysong-XMOS-Bridge) , but can´t say this for absolutely sure..
anyway, a real improvement in sound/SQ on these boards is to use a dual-DC -power-supply chain (with +-15V !!) (also see posts before), i would tell it like so (and come to an end with these ES9038Q2M-chinese-boards) (but its very „speculative“, only some guess/feel by myself 😉 ):
- 100% -> SMPCB V1.07 (Green) with Dual-DC +-15V
- 98% ->Skysong ES9038Q2M with Dual-DC +-15V
- 82% ->both boards with Dual DC +-12V
- 72% ->SMPCB V1.07 (Green) with single 12V/15V
- 70% 😉 ->Skysong ES9038Q2M with single 12V/15V
- 68% -> „Blue“ ES9038Q2M with single 12V/15V
but as said, very „speculative“ 😉
by that these new Skysong ES9038Q2M with the display, volume-poti and possibility to „control“ it via some cheap (3$) Apple-TV-remote is very „handy“ usability-wise; very nice to adjust the volume on the board too (its a „hardware“-volume mixer (bit-wise)) and has very little impact on the sound-quality, almost nothing..(by that i can finally change the different filter-types „on the fly“, will maybe post a little bit more of it) as originally wanted here on the site..
so again, sorry about it, but i guess thats the final post concerning the differences on these ES9038Q2Ms, maybe we´ll get some ES9038 Pro in future 😉 ,
greets for now 😉