Well I finally got to read a customer review of Emotiva's Fusion 8100
http://emotivalounge.proboards.com/t...va-fusion-8100
In short: He found it sounded noticeably better than his previous rather high end receivers: Yamaha RX-V673 and a Marantz SR6005.
Main improvements: Midrange, and (strangely enough) imaging.
However, the 8100 didn't have the headroom of his two previous receivers. He had to increase the volume of the source levels to crank his JBS's to the levels he had with his previous receivers.
He says if he was to get less efficient speakers he would use the preouts of the 8100s to external amps.
Mark