The AVR should have crossover functionality with a sub pre-out....most 2ch integrated amps lack this. This avr should be a nice 2ch amp otoh.Thanks, I did find the crossover function as mentioned in post #5. The amp is currently an older HT AVR, a Sony STR-DA2400ES. It was decent back in the day, but digital formats, sample rates and bit depth have advanced since then. I will be replacing it with a 2-channel integrated amp.