I have a pair of PSB Stratus Gold that I want to bi-amp. Right now I have an Adcom 5500 that sounds great with the speakers. I have a chance to get an Adcom 555. Would the 555 pair up nicely with the 5500? Anyone have experience Bi-Amping with different Adcom? (I also have a set of Magnepan MG IIC that I would run from this set up.)