I am curious if this is important or not. I will eventually have an equipment rack full of equipment including a dozen Outlaw M-200 power amps. I am building a multi-channel home theatre system and bi-amping with electronic crossovers. I will be running two 20 Amp. feeds to my equipment rack. Should the feeds be fed from the same 120 Volt Phase or does it matter? If the two feeds are out of phase, the potential between the Hot Leads would be 240 Volts.