Our BAT equipment draws a lot of juice and any restriction may change your sound. I have BAT VK150SE's. Personlly, I'd recommend getting the best power you can to the amps (dedicated 20 amp line, iso ground, good wire, top AC plugs), then using a great power cord (well cords 4 in this case for you)
The Purist Audio Designs cords work great for me. They also have a new model out that seems to be awesome. I use Purist 20th Anniversary now. In the past my favorite cords (In order of best to least liked - all of these GOOD!) with BAT have been the Purist Dominus Ferrox, the Purist Dominus fluid, Kimber Palladian PK10, Tranparent Powerlink Reference.
http://www.puristaudiodesign.com/
Any of these cords will work great for you.
Good luck
The Purist Audio Designs cords work great for me. They also have a new model out that seems to be awesome. I use Purist 20th Anniversary now. In the past my favorite cords (In order of best to least liked - all of these GOOD!) with BAT have been the Purist Dominus Ferrox, the Purist Dominus fluid, Kimber Palladian PK10, Tranparent Powerlink Reference.
http://www.puristaudiodesign.com/
Any of these cords will work great for you.
Good luck