So ... that is adding 2 more boxes to a Chord dac to tune its sound. I know external linear power supplies can help and improve the sound considerable. I used it for a while on my Brooklyn Dac+ at the time. However, now I just want a single well designed box for my next Dac.The Chord DACs can be tamed with the Chord M Scaler and a high quality external linear power supply for them i.e. for the Chord DAVE a 'Farad Super 3' for instance !