I used to biamp with my older Arcam Avr300. I think it helped but some people dont buy into biamping with a receiver. Just be sure to realize that u wont be doubling your power as some people think. Your tweeters will never ever come close to needing or using a full 120 watts. Now if you could bridge those channels i would think it would be more of a noticable difference.
Arcam AVR600 bi amp
I have recently purchased an Arcam AVR 600. I am using it in a 5.1 setup and probably wont be using the 6th & 7th channel until summer for my patio speakers. The manual says that you can assign these channels to bi-amp your front L&R speakers, but do not go into any more detail.Just curious if anyone has tried this and what success they have had.