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#309248 - 06/03/10 03:52 PM Duel subs
Milford3 Offline
buff

Registered: 06/03/10
Posts: 48
Loc: Dingmans Ferry Pa (USA)
I have added a second sub to my 7.1 system. My AVR h/k 645 has a sub stetting that calls for a 12/10/8 inch driver. My main sub is a duel 8 inch drive and the other sub has a 12 inch driver. What setting sould the AVR be at?

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#309252 - 06/03/10 04:27 PM Re: Duel subs [Re: Milford3]
casey01 Offline
aficionado

Registered: 07/03/08
Posts: 852
Loc: Toronto
Quite frankly, other than perhaps maybe suggested crossover and/or LFE level settings I am not exactly sure what is meant by an AVR "sub setting". Depending on the size of your L/R speakers, the usual crossover is 80hz. The different size drivers in each sub is pretty irrelevant. I have a couple of old Yamaha subs in another system in my house with "dual 8s" that, although they can't be played quite as loud, give me better bass extension than a Paradigm I have with a 12" driver.

Just get the crossover, volume balance between the two subs and phase setting right and you will be good to go.

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#309255 - 06/03/10 04:54 PM Re: Duel subs [Re: casey01]
Potatohead Offline
aficionado

Registered: 05/14/09
Posts: 670
Loc: Vancouver
I challenge you to a dual!

Hehe

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#309298 - 06/04/10 02:25 AM Re: Duel subs [Re: Potatohead]
jakewash Offline
shareholder in the making

Registered: 12/26/03
Posts: 10415
Loc: Calgary, Alberta
I would set it for the 12" driver as dual 8's is pretty close to a 12" cone area.
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#309314 - 06/04/10 08:24 AM Re: Duel subs [Re: jakewash]
Micah Offline
connoisseur

Registered: 11/16/08
Posts: 1789
Loc: Indiana you hoser!!!!
I dunno, it seems to me that each size of speaker playes a certain frequency 'optimally' (as in, you don't see very many 12 inch tweeters)... sure they can engineer different sized speakers to play frequencies that may otherwize not be best reproduced by that particular size. The 6 1/2 inch divers in my M80's are a great example. In all my car audio days I never, and I mean NEVER heard speakers that small produce such impressive bass. So my guess would be that your AVR is trying to send the bass signal to your subs that best suits the size of your sub. But with todays subwoofers, that just might be a non-issue.

Either way, I'm sure JohnK will be along shortly to tear apart my theories and set you straight! ;\)
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#309320 - 06/04/10 09:44 AM Re: Duel subs [Re: Micah]
FireGuy Offline
devotee

Registered: 10/31/07
Posts: 316
Loc: Buffalo, New York
Just forget about this issue, keep the BIC and FedEx the Bravus 8D to Buffalo.


Edited by R DeVries (06/04/10 09:44 AM)
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#309324 - 06/04/10 10:46 AM Re: Duel subs [Re: FireGuy]
Micah Offline
connoisseur

Registered: 11/16/08
Posts: 1789
Loc: Indiana you hoser!!!!
Uhhh.... you guys brothers?
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My Stuff :

M80's
QS8's
VP150
EP800
Denon 4802
Emotiva XPA-3
Samsung BD-P3600
Sharp 65 Inch Aquos LCD

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#309332 - 06/04/10 12:00 PM Re: Duel subs [Re: Micah]
SirQuack Offline
shareholder in the making

Registered: 01/29/04
Posts: 13571
Loc: Iowa
Never heard of that setting. There are some HK owners on this thread, maybe they can contribute to your question..
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#309407 - 06/04/10 07:17 PM Re: Duel subs [Re: SirQuack]
fredk Offline
axiomite

Registered: 12/06/07
Posts: 7786
Loc: Canada
Strange indeed. I wonder if it does both a high and lowpass filter?
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#309410 - 06/04/10 07:32 PM Re: Duel subs [Re: fredk]
Milford3 Offline
buff

Registered: 06/03/10
Posts: 48
Loc: Dingmans Ferry Pa (USA)
Yes we are brothers. Twin brothers. To be at Axioms 30 year bash!!

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