Ahochan,
I really like the Onkyo receivers. Yes, any of the current models will be 7 channel. Some will have bi-amp option that will allow you to bi-amp a pair of L/R front speakers if the speakers have bi-wire/bi-amp inputs.
Check the various receiver manufacturer's websites or a large vendor site like J&R. You should be able to easily find receivers that have pre-outs and have bi-amping capability.
Enjoy,
TIC
I really like the Onkyo receivers. Yes, any of the current models will be 7 channel. Some will have bi-amp option that will allow you to bi-amp a pair of L/R front speakers if the speakers have bi-wire/bi-amp inputs.
Check the various receiver manufacturer's websites or a large vendor site like J&R. You should be able to easily find receivers that have pre-outs and have bi-amping capability.
Enjoy,
TIC