Raquel: I do, in fact, run them with the BPS-6 battery supplies. They DO sound better on most material- typically very dynamic large scale classical or other dynamic selections at HIGH volume - running DC rather than AC. I question whether I'm extracting the last bit of detail and resolution when playing running them on batteries with less demanding music- jazz, female vocal. SO, the question is- how would they sound with some hot-rod cords running AC ?? Regardless of this "tweaking" question, these are absolutely remarkable amps for the money.
