http://community.crutchfield.com/blogs/av_tips/archive/2009/01/13/better-home-audio-tip-10-biamp-your-speakers.aspxTip #10: Biamp your speakers. If you've purchased a home theater receiver in the last couple of years, it may have extra channels of amplifier power that you can put to use for better sound. That's because most newer receivers have seven amplifier channelsenCommunityServer 2008.5 SP2 (Debug Build: 40407.4157)