Hi everyone, I have read this board alot but never posted. So heres my ?, I have 3 component sets to go in my car a focal 165k2p, infinity kappa perfect 6.1, and Diamond audio 661. I have several amps that i can use like the PPI 4125, and Memphis 16 MC3004, Soundstream t-800.4. which amp will work best as far as sound quality, or what other amp on the market will work good, Thanks for any help in advance.