You can just get rid of the three channel amp. If you have a pre-amp(with processor loop) and a main two channel amp, just power the center and rear surrounds off of the receiver. Run the receivers L&R front pre-outs to the input of your pre-amp processor loop. For music, just use your source (connected to the pre-amp) and the preamp/amp. For HT, engage the processor loop and the receiver will power the center,rears,LFE sub from your digital source. The outputs from the receivers L&R front pre-outs are connected directly to your main amplifier when your processor loop is engaged.
This is how I have my system set up. I have a dedicated two channel system with an HT receiver add-on through the processor loop of my 2-channel system. The receiver powers center, surrounds, LFE sub.
For a cheap adaquate HT receiver, you can use any receiver as long as it has pre-outs for at least the front L&R speakers. I've had Sony STR-DB930, Sony STR-DB940 and Denon AVR-3300. All were good. IMHO, the Sony's had better ergonomics (easier to use) but the Denon sounded slightly better. I have a B&K AVR-202 on the way. FYI, I will be listing the Denon for under $400 in the near future.
Enjoy,
TIC
This is how I have my system set up. I have a dedicated two channel system with an HT receiver add-on through the processor loop of my 2-channel system. The receiver powers center, surrounds, LFE sub.
For a cheap adaquate HT receiver, you can use any receiver as long as it has pre-outs for at least the front L&R speakers. I've had Sony STR-DB930, Sony STR-DB940 and Denon AVR-3300. All were good. IMHO, the Sony's had better ergonomics (easier to use) but the Denon sounded slightly better. I have a B&K AVR-202 on the way. FYI, I will be listing the Denon for under $400 in the near future.
Enjoy,
TIC