Wow, I have yet to hear ANY reviewer describe power plants sound as white wash the music or sucking the life out of music. All of them says quite to the contrary, though I'm not sure if they compared a Shunyata to it side by side. I use a P500 myself. It's the most real, vivid and detailed I've heard. However, I haven't heard any Shunyata's, just Audience's aR1P and PS' own Quintet.
I'm not sure if battery power is the term PS Audio would use for describing the power plants. The best place to ask technical question is PS Audio's website (PS Audio), or Audio Asylum's PS Power forum (google "PS Power forum") where Paul McGowan himself and his staff members answer questions. As I understand it, Power Plants are real time + reserve in providing power (maybe battery?), hence the upstream power cable which provides for all components connected to it still determines how much power is available to them. For that cable, I believe it's always better to over-kill (just me). I think a battery must have huge reserve in order to provide for, say, a Bruckner symphony (lots of loud and long passages). The Premier doesn't look like it can hold that much to me for the claimed 1200 watt continuous power output to me. Do yourself a favor - don't starve your power plant! I have tried some cables from wall to my P500 and the difference is real. Something for you to consider.
I'm not sure if battery power is the term PS Audio would use for describing the power plants. The best place to ask technical question is PS Audio's website (PS Audio), or Audio Asylum's PS Power forum (google "PS Power forum") where Paul McGowan himself and his staff members answer questions. As I understand it, Power Plants are real time + reserve in providing power (maybe battery?), hence the upstream power cable which provides for all components connected to it still determines how much power is available to them. For that cable, I believe it's always better to over-kill (just me). I think a battery must have huge reserve in order to provide for, say, a Bruckner symphony (lots of loud and long passages). The Premier doesn't look like it can hold that much to me for the claimed 1200 watt continuous power output to me. Do yourself a favor - don't starve your power plant! I have tried some cables from wall to my P500 and the difference is real. Something for you to consider.