I have a denon avr with 15 channel s these days they have atmosphere witch puts front high middle high and rear high .this is so when things in the movies rly overhead they go from front to back..some music is now in atmos.ir your preamp has home theater pass through it allows the two front channels to be driven by your current amp.home theater can go from mild like stuff at best buy or separate home theater with separate multichannel processors with 30 separate monoamps for 15 channels.this is why mcintosh made the mi 502 class d amp for home theater.it does sound good in stero as well. You might have to read some home theater articles..personally I like my denon avr with 15 channels.its hard to go back to the theater.enjoy your search.and the music.
