Class D amps are of quite high efficiency. While one could easily "skimp" on power cord gauge with an amp of this nature, i would treat it as a combination of a digital source component and a power amp. Due to the switching nature of the power supply and the associated RF and AC hash that it will generate along with the higher current demands that an amplifier will draw, try checking into a design that is of high capacitance and reasonably heavy gauge. As to specific suggestions, i'll leave that up to others that may be more familiar with the amps that you mention. Sean
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