UPgrading power cord for Audioprism Foundation III

Can any of you suggest a power cord upgrade you have experience with in regards to link from an Audioprism Foundation III to wall outlet. The female end takes a horizontal blade 3 prong. I can't decide on whether to go with a very heavy duty cord like the PS audio LAB or something with a lighter gauge like those used for preamps or source equipment. All outlets on the conditioner are full and I'm running 2 amps into it and 4 source pieces. THanks in advance. Dave.