Performing well with music usually means 2 channel stereo. Not trying to patronize.
I broke down and bought a Samsung 5.1 surround to match my Samsung plasma tv, and I am very pleased, even when listening to music exclusively.
The unit was cheap, like $300.
There are no noticeable holes in the response. The little sub is surprisingly accurate and powerful.
For under $500, you should test drive models at the store with your own album of choice.
Otherwise, you could probably buy an awesome used unit (for that price) for two channel stereo and really hear your music.
I have two Nakamichi TA4A receivers, circa 1984ish. Thay draw -according to the manuals specification, 20 amps max from the wall plug. MAX.
Anything with all the video switching you desire will cost thousands new, Lesser models will have the same Hitachi transistors as all the other tuner/amps at the store which usually pull no more than 8-10 amps.
To avoid confusion, what do you want? Do you have room for separate systems?
Home theater is a much different creature than quality listening.
Example:
An old system with a Carver hologram generator (unlikely) and some Polk speakers with harmonic resonators will make your hair stand up in the dark.
Truly a unique experience if the room is right.
If you can find a pair of TDL monitors you can listen to an even larger frequency of sound.
Finding an amp or tuner amp with plenty of headroom will make you happy.
Respond with questions, but just do this when possible: Take a poor recording like Alice in Chains "Dirt" and listen to it. Then play Foreigner "4" and hear the difference. Only examples I have, and my opinion.
If you have the "bug" for music, you'll know what I'm saying.
Thanks,
Tom