Originally Posted by dmac37
I would be running a 7.1 setup with Swan Diva 6.1 speakers as my mains. I have only used receivers so I'm not sure of the best way to use a pre amp.
What is the best way to utilize the 807 with a pre amp? One dedicated to the mains and center with the other for the surrounds?? Which for the sub?
You can use the TX-NR807 as a preamp if you purchase an external amp. There are pre-outs on the back panel that RCA to whatever amp you choose to utilize.
My setup with the electrostats can be very demanding on an amplifier, since the electrostats can drop to 1 ohm resistance. I don't have any experience with the Swan line of products, but they look nice.
In my system, I simply started by removing what I considered the most important, and demanding draw by putting my Vantages on an XPA-2. This was prompted by poor sound quality coming from the Motif center channel electrostat. I figured if I could power the Vantage electrostat panels with external amplification, it would free up enough power from the 807 to run the Motif cleanly. I was wrong...but the difference in sound with the XPA-2 driving the Vantage panels was night and day.
That's what led me to buy the UPA-1 for the center channel. Now I have clean sound from the center and mains, and the 807 only drives my two tiny Polk Audio RM85's for surround (I'm 90% two-channel music + sub, 10% home theater). In that role the amplifier section of the 807 does fine...when it's not broken.
I think most subs are powered already...my Martin Logan Descent is. Simply run an RCA from the LFE output on the back of the 807 and you should be good there as far as having power and signal.
If you want to experiment and build your system slowly, you can look for a good 2-channel amp to drive your mains, and leave everything else on the 807. It really comes down to what your system needs to sound best...which is probably different from what anyone else's system needs.
Personally, I think if the LPA-1 you've located is in good shape, it seems it would be a great value, and a limited risk to try it out with your system. Worst case if you don't notice a difference you can probably get what you paid for it on audiogon.