I am looking at buying a Cheapish DAC to feed my Little Dot MKII and I keep being drawn to looking at the NG94 MKII PCM1794 USB&SPDIF DAC+Headphone Amplifier AMP on ebay . Mainly as it's got USB, Coaxial (BNC/RCA), Optical and the DAC module is on a seperate board and so might have upgrade...