Searching for CD/DVD Player with volume control


I have an Oppo 970HD DVD player that I run directly into a power amp, using the Oppo's volume control to operate the loudness level. This bare bones 2 channel system is for music and movies alike.

I'm looking to step up to a better DVD/CD player for improved CD playback while keeping the bare bones set up. My budget is up to $400 on the used market.

What are my upgrade choices for a DVD player with variable output?
Marantz, Cambridge, Arcam, Pioneer, Denon, etc?
mjcmt
If there were other options that were in your price range, I am sure members would have mentioned this, but as you see, you are limited.

Why not just keep what you currently have ?
Concur. Oppo is really the only option and the 983 looks to be a good one all around in audio and video.
I just found out about the Panasonic BluRay player for 4 bills from best buy. Plays Bluray, DVD upsampled to 1080P, and CD w/ 24/192 audio DAC. It has 2 channel analogue out w/ volume, I'm told. I'm going to check it out at Best Buy. I don't know about its DVD and especially CD quality...yes, especially redboook cd playback.