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#393438 - 05/26/13 08:10 PM Re: Dual centers [Re: brwsaw]
CatBrat Offline
axiomite

Registered: 08/05/09
Posts: 5941
Loc: Milky Way Galaxy
I have dual mains and centers, and using a single channel for each. Wasn't even aware there was a way to reassign amps to different channels.

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#393441 - 05/27/13 12:33 AM Re: Dual centers [Re: CatBrat]
brwsaw Offline
connoisseur

Registered: 10/12/12
Posts: 1208
Loc: Canada
I won't be re assigning. Just removing rears from the amp and using the recievers built in amp.
I'd preffer to keep it simple while I test the theory.
The simplest would be to run them off the receivers single output with a paired cable.
The recievers only powering the center and presence now. Theres headroom available.
Would running 2 8ohm speakers mean a 4ohm load?
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#393451 - 05/27/13 09:16 AM Re: Dual centers [Re: brwsaw]
Ken.C Offline
shareholder in the making

Registered: 05/03/03
Posts: 17819
Loc: NoVA
Yes, cabled to the same output, 2 8 ohm speakers would be 4 ohms.
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#393453 - 05/27/13 12:20 PM Re: Dual centers [Re: brwsaw]
brwsaw Offline
connoisseur

Registered: 10/12/12
Posts: 1208
Loc: Canada
Is there a benifit or detriment to using seperate outputs?
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#393454 - 05/27/13 12:25 PM Re: Dual centers [Re: brwsaw]
Ken.C Offline
shareholder in the making

Registered: 05/03/03
Posts: 17819
Loc: NoVA
Almost no one (aside from CatBrat) does what you are proposing, which, if I understand it correctly, is running two pairs of L/R fronts. There is no second center output on any receiver I know of, so if you're talking about running dual centers, your question is moot.

Seriously, dude, you've got the worst case of upgraditis I've ever seen.
_________________________
I am the Doctor, and THIS... is my SPOON!

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#393456 - 05/27/13 12:35 PM Re: Dual centers [Re: Ken.C]
brwsaw Offline
connoisseur

Registered: 10/12/12
Posts: 1208
Loc: Canada
I would be using 2 channels from the amp if I did.
The reciever could handle the load though.
I like to swap speakers. Looking at the cost of the stand and new center it almost makes sense to add another pair of M80's. I will work my old towers back into L /R and will try the dual 80's for a while. It won't be for a while though.
I'd like to hear Brians setup too.
I like how my layout sounds but the center has to go. It will join the parts pile asap.
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#393457 - 05/27/13 12:42 PM Re: Dual centers [Re: brwsaw]
Ken.C Offline
shareholder in the making

Registered: 05/03/03
Posts: 17819
Loc: NoVA
You won't be able to run a pair of M80s off of one channel; that would be a load of 2 ohms--and you can't reassign a rear amp to the center channel.
_________________________
I am the Doctor, and THIS... is my SPOON!

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#393465 - 05/27/13 01:19 PM Re: Dual centers [Re: brwsaw]
CatBrat Offline
axiomite

Registered: 08/05/09
Posts: 5941
Loc: Milky Way Galaxy
Kens right, I'd be leery of running 2 4ohm loads on the same channel. Doesn't mean I wouldn't try it, but I'd definitely keep a close watch on how much heat the amp / receiver generated.

So far running 2 8ohm loads hasn't presented a problem on 3 different mid to high end receivers.

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#393472 - 05/27/13 02:44 PM Re: Dual centers [Re: brwsaw]
brwsaw Offline
connoisseur

Registered: 10/12/12
Posts: 1208
Loc: Canada
I'd be running 2 QS4's or QS8's off one(receiver or amp). I'm not sure if having the empty channel on the amp would have any benifit except that at 4 ohm I should have more potential headroom.
M80's would be on seperate channels from the amp. Always will be.
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#393473 - 05/27/13 02:47 PM Re: Dual centers [Re: Ken.C]
brwsaw Offline
connoisseur

Registered: 10/12/12
Posts: 1208
Loc: Canada
Originally Posted By: Ken.C
Almost no one (aside from CatBrat) does what you are proposing, which, if I understand it correctly, is running two pairs of L/R fronts. There is no second center output on any receiver I know of, so if you're talking about running dual centers, your question is moot.

Seriously, dude, you've got the worst case of upgraditis I've ever seen.


It wouldn't be dual left and right.
Just two centers with the L/R move slighlty farther apart.
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