Micro project:
Raspberry a+ (adafruit.com/product/2266)
together with a hifiberry + (hifiberry.com/dacplus/)
amplified by a S.M.S.L sap5 (head-fi.org/t/729667/2014-mo … mpressions)
all running on volumio 1.5.
Result:
Incredible detailed sound on really small hardware, but great Software solution !