I had been using a Denon 3801 for a combo.  I have a Behringer EP2500 for my subs.  I tried the Behringer with the Denon.  It was better, but not by a landslide.  When I setup the Sherwood with the Behringer, it was a whole new world.  Could hear many things I had never heard on CD before.   Some things were a tad bright, but I think it was just that the Sherwood was passing through the true nature of the recording.  If I had walked into a room blindfolded and you had stuck me on the couch and played Bob Seagers "Turn the Page", I would have sworn he was on  a stage in front of me. I could hear him breathing on the mic, hear the crowd in the room, everything very detailed and clear.   My wife was equally impressed.  I am so glad I upgraded from a receiver to a pre.  100% difference in quality.   Hope it helps.
Roly