Quote Originally Posted by mavava
You are right. I didn't say that I do have A/V receiver Denon AVR-2807 but I'm not happy with audio signal what that receiver produce. I also have preamp Adcom GTP-500. So, I did connect, and compare. It's huge difference! Sound via preamp is much more clear, and that is the sound what I want. But, that's the problem. I can use that preamp only for one pair of speakers.
By the way, I don't mind to buy another two Adcoms preamps (they are cheap $100) My question is how to connect all toghter?
Thank You for your rasponse.
Nash
Are you wanting to use the Adcom for 2 channel play back and still use Denon for the surround?
i.e. sharing the same amplifiers from 2 different sources?
Maybe this is what you need, although you may need more than one if you have multiple amplifiers.

http://www.buy.com/prod/speakercraft...204226662.html
and you will needed one of these to power the above (I don't know why they are sold separately)

http://www.buy.com/prod/speakercraft.../90117255.html