Two tube amps for your consideration please

The Jolida integrated amps are unique in that the volume control on their integrated amps are passive. You can easily use it as a power amp, feeding it from the preamp output of your Denon pre/pro. Just by turning the volume control all the way clockwise will remove this pot from the amplifier circuit. Hope this helps you.

As far as your question of the 502 vs. 302:
The 302 uses EL34 tubes and has the gorgeous midrange magic these tubes are known for.
The 502 uses 6550 which is more dynamic w/ a bit tighter control, but you will loose the magical lushness.
I had the 302 in a 2 channel HT system, from Jolida's owner, Mike's recommendation. There was a 3D human quality to music and movies that will simply stunning. As far as HT as you will use it dialogue in movies was absolutely inteligable at any volume level and music in movies was like being at a concert., and sound effect surounded you w/o 5.1. It was amazing!

I think the BADA 222 is amazingly good for the money. Will fit your budget too. (Just). I bought one to replace a $4000 amplifier while it was being repaired and frankly, I like the BADA more. And it does have tubes if that matters.

http://www.pacificvalve.us/BDC222.html

Thanks for that info Chayro. I looked it up and it is in my price range and the reviews look good also. It looks like a pre-pro? can I run my pre outs from the Denon to it then the BADA to the speakers?

Thank you Mjcmt that is some spot on good information on the 302.