Quite simply, it eliminates the grunge and crap that your local electric utility sends you along with your a/c, which all the motors and noise producing devices along the way further muck up. The battery sends nice, clean d/c to the audio section, making the noise level very low, the background quiet and the sound much cleaner and grain-free.
Battery power on Synergy 2i?
Anyone who can tell me in what way Battery power improve the sound of this pre?