As a matter of fact on the power cord, We had 2 of the DAC-AH's stock and set up parallel into one preamp, one on the auxilary input, one on the CD input, A-B testing on the fly at the touch of a button all the same cables and transport, and trust me between 3 people doing the Testing (listening at the same time) we all determined the biggest direct tweak you can do was to use a good thick power cable, the Bass completly went to a much higher resolution level, far more detail, with the stock cord it sounded good, but was totally like a 1 note bass in comparison to the better cable...Soundstage might have expanded a little too which added to the deeper effect? We actually took it a step further and made sure to use both STOCK cables one on each dac and hear that they were the same in the first place and that the better power on either unit would improve it, and it did! we came to the conclusion there was a 20% solid enhancement with the power cord.
We then decided screw it lets pull out some left over deadner material for the panels and cover this sucker, and see what happens vs. the stock, well again a SMALLER but different sound difference, it just seemed a bit smoother sounding or more control with cleaner but nicer rolled off sound.. not sure what really accounted for this.
We then decided screw it lets pull out some left over deadner material for the panels and cover this sucker, and see what happens vs. the stock, well again a SMALLER but different sound difference, it just seemed a bit smoother sounding or more control with cleaner but nicer rolled off sound.. not sure what really accounted for this.