Power Conditioners Recommendations


Looking for some recommendations.
In your opinion / experience what would you say is a good deal / good value power conditioner for about $250 used?

I am looking at Adcom ACE-515 as the ceapest at about $70, Monster Power HTS 36000Mk2 for about $160 up to Furman PF Pro at $250.
Anything else?
I have a tube amp and CD player for a source

thanks!!
ether
forget the Adcom it's useless...the Monster is ok, don't know about the Furman. The Monster will filter ac and protect from surges and brownouts....
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I recently bought an Audience Adept Response for $311.00 used here on Agon and can not believe the improvement. I know it is just outside of your price range but read the reviews - they are accurate IMO.