I would not recommend Adcom 515 on anything draws more current than a clock radio.
04-14-15: Wolf_garciaIf Adcom 515 sounds good with your components, I would not waste money on after market PCs but stick with stock. It will make NO difference.
Other's claim better results with expensive AC stuff (some of these results seem directly related to EJS or Expense Justification Syndrome), but I've used an Adcom 515 since new and it works perfectly and the system sounds great with the thing..