You're right, the original HDPlex PSU that I have is only 2 amp, looks like I'll be giving the Sparky setup a quick listen, write up then sell it as I'm not spending more cash on another PSU.

Just thought I'd see if it was better then the Pi and IQAUDIO DAC, but for me running it via Max2play and LMS is a non starter, far too complicated to get going and I'm pretty computer savvy and have used LMS before but it still took me a few hours to get going.

The Kali and Piano DAC don't fit my Pi either as it's an older version, so I can't swap them over and try it on my Pi.