I had the same problem with my Denon AVR 3300. Great for HT
and fell short on music. I tried using the denon as a preamp
and pushed it through 2 Mcintosh amps and the Denon for center speaker. It was a little better but not right. I ended up putting the Denon back in use for HT and setting up a seperate system for music. I went with tubes for this system. I found a good deal on a new Anthem Amp 1 by Sonic Frontiers, a used audible illusions mobulus preamp, and a new pair of MMG Maggies. It suits me for now and I love it, but down the road when ther's more money------. Good luck.
and fell short on music. I tried using the denon as a preamp
and pushed it through 2 Mcintosh amps and the Denon for center speaker. It was a little better but not right. I ended up putting the Denon back in use for HT and setting up a seperate system for music. I went with tubes for this system. I found a good deal on a new Anthem Amp 1 by Sonic Frontiers, a used audible illusions mobulus preamp, and a new pair of MMG Maggies. It suits me for now and I love it, but down the road when ther's more money------. Good luck.