Jeff, there was a big improvement. I like to play my music VERY loud, but clean of
coarse. The 3805 just wouldn't cut it without bi-amping the fronts. I went through a
bunch of CD's and was amazed at how much cleaner it was at high volumes. I also have
an SVS PB2-Plus sub, and now the M80's can keep up with it. You probably wouldn't
notice much of a difference with the bi-amping if you listen to your music at low to
moderate levels, except that you wouldn't have to turn the volume up as high to reach
your preferred listening level. Thanks for the advice on the amps.