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Can I do this to my Denon AVR-2802 Receiver

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vulcanman

(A)

This post is probably for anyone who has opened a Denon AVR-2802 or AVR-3802 receiver ... and willing to guide me ...
I bought this receiver because it was advertised as capable of 7.1 channel output (ie. 5.1 + Two Surround Back Speakers).
But when I opened the box I realized that it only has preamp outputs for the two surround back speakers. It has speakers output for a single back speakers (ie. 6.1 ... not 7.1)
Since I dont use the center channel output (I prefer phantom center) .. I was wondering if I can route the preamp signal for the second back speakers ... to the amplifier designated for the center channel ?
Any help is appreciated ... my email address is hirez@wired2net.com
Thanks !

Follow Ups:

Re: Can I do this to my Denon AVR-2802 Receiver - drobo 15:05:15 05/09/02 (0)
If you want the back surrounds for ES surround you really only need one speaker 'cause it's mono.
drobo
Re: Can I do this to my Denon AVR-2802 Receiver - EdM 10:28:42 05/08/02 (5)
Not easily. If you connect the Surround Pre-OUTS to an input you would have to switch to that input and that would probably defeat the Dolby decoding.
You might be better off just to buy a cheap old amp or receiver on eBay for the surrounds. I'm sure you can pick up one for less than $100
- Let me try and explain it better ... - vulcanman 10:45:11 05/08/02 (4)
  All I want to do is open the receiver ... and hopefully find the cables that goes from the preamp board to the poweramp board.
  Then ... identify the cable that carries the center channel signal. Disconnect this cable.
  Then ... identify the cable that takes the single surround back speaker signal ... splice this and send the signal to the power amp board meant for the center channel.
  So what happens is that the speaker out labeled "CENTER" ... actually becomes Surround Back (permanently).
  It should not mess with any decoding process.
  Correct ?
  Thanks.
  max
  - The only problem with this... - cfraser 11:54:23 05/08/02 (0)
    is that you still won't have proper 7.1 outputs for the backs. If you want to cut'n'hack, you'd have to route the back's two 7.1 pre outputs to the center and single "6.1 back" amp inputs. Not very difficult I guess, but an external amp is easier.
    My HT receiver just has the pre outputs for the two backs so I use an external amp. You'll note the position required for those back speakers pretty much precludes anything that isn't smallish, unless you have unusually high ceilings, so that back amp doesn't need to be very large. Also, there's not much with stuff on those two back channels (yet), but when there is, it's kinda cool with action movies.
  - Two problems... - EdM 11:53:54 05/08/02 (2)
    The center channel is just one channel, the rear surrounds are two channels.
    Also, I don't think Denon actually uses much, if any, internal wiring, everything is printed circuit board. I opened my 2802 up recently and don't remember seeing much actual cabling.
    I'm sure you could do what you want but you will void the 2 year warranty. I still think just getting a cheap outboard amp would be better.
    BTW, you know you are missing a lot not using a center channel speaker? In a typical movie, about 75% of the content is coming out of that center speaker.
    Just a thought!
    - Re: 75% of the content is coming out of that center speaker - vulcanman 14:20:54 05/08/02 (1)
      Not to stray from the subject ... but I do have a center channel speaker which I never really bothered to use ... since I prefer the awesome soundstage that the Mirage M3-Si throws in front ... this is even more important when you are watching a movie where there is a lot of ambience around the voices (for instance two people talking on the seashore) ... with the center channel enabled the vocals totally collapse the ambience of the sea ... making it all sound like 2D ... with the ghost center ... the voices take their proper place in the 3D space.
      Ok ... there might be exceptions ... but more often than not they route all the vocals to the center channel .... which makes all the voices (if there is more than one person in the scene) ... come from the same spot.
      YMMV.
      Thanks.
      Max
      - Re: 75% of the content is coming out of that center speaker - Nz audio 20:10:33 05/09/02 (0)
        
        In Reply to: Re: 75% of the content is coming out of that center speaker posted by vulcanman on May 08, 2002 at 14:20:54:
        
        Max, It seems to me you want to go about things the hard way. If you are that bent on the fact that no center in the front is best, my advice (for all its worth) would be to move your front center speaker to the rear of the room and forget about the extra set of side effects speakers.
        I use a Denon AVR1601 with 4 polk RT800i's & a CS400i center, which sounds bloody good. I recently set up a mates new AVR3800 amp c/w polk RT1000i,FX500 dipoles and CS400i center. Then we ran some tests with my RT800i as side effects and also with my CS400i center as a rear center. After testing a number of DTS,DD & THX DVD's we came to the conclusion that the rear center was the best set up by a long shot. Check out the HT hand book on the Polk web site.
        http://www.polkaudio.com/home/library/hthandbook.php

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