Nice sound but confusing UI, and failed after 2 weeks
M. Rich, Amazon
11 June 2011
Summary: I like Yamaha and will continue to buy them but this product did not work out for me. Did have nice sound with my JBL/Advent speaker system and I do like the remote. But as others have noted, the manual and general UI is confusing.
Summary: Yamaha advertises "Assignable amplifiers for bi-amp connection". This feature selectively routes the full-range signal for the front channel to the surround back channel. It does not implement any internal low-pass/high-pass crossover filtering at the pre-amp level- same signal to both amps.