Just to give my review of the batteries. When I A/B the power supplies (going back and forth from the stock PS to batteries) I can definitely hear a difference. The batteries give a fuller, smoother sound. I tried it on my girlfriend, who is not prone to the placebo effect on things audio, and she could tell the difference between the two power supplies and preferred the sound of the batteries.
Having said that, twice while listening I thought to myself how incredible the amp sounded with batteries, only to walk over and see that it was actually the stock PS that was plugged in
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A slight problem:
When I entered my room today there was a high pitched sound coming from somewhere. Everything was turned off. It turns out that the Soneil charger was emitting the sound. Un-plugging the charger from the batteries and the sound stopped. The batteries were fully charged at the time.. Anybody have a comment?
