04-05-2008, 12:18 AM
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#9 of 15 
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Member
Location: Katy, TX
Join Date: Aug 1999
Local Time: 10:44 PM
Local Date: 10-11-2008
Posts: 6,487
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Re: Can I bi-amp like this...?
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Now I'm confused about whether or not I should use the l/r outs on the DVD player for this. I'm thinking that the composite signal would be identical to the optical signal.
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It isn’t. The former is two-channel analog. The latter is a digital signal that is decoded to 5.1 analog channels by a Dolby Digital processor. What would be coming from the front two channels from the digital output would be much different from what’s coming from the L/R outputs.
You can check it yourself by plugging the DVD player’s L/R outs to a separate input on your receiver. Compare that input to the DVD input with the center channel disconnected.
The reason you can’t really use the DVD L/R outputs in the manner you mentioned, “hooking the l/r outs on the DVD player into another amp” is because you’d then have two separate and fully independent volume controls. Not a pretty picture, having to turn the tweeters up separately from the woofers...
Regards,
Wayne A. Pflughaupt
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