View Full Version : Possible to wire two channels to one speaker?


spazmochad
08-14-2006, 08:04 PM
- I've posted this in the speaker forum just now but thought this might be a better place to pose such a question:

Is it possible to wire the output from both the left and right channels of an amplifier to one speaker? What sort of effect would it have on things like power, impedence etc?

I know it sounds like a silly question but I've got a passive Boston sub coming tommorrow and I need to think of a way to wire it up.

Provided I am able to hook both channels to one speaker I was thinking of doing the following (2x crossovers are needed because they are 100watt max, whereas the actual speaker is 200watt and my amp is 90watt per chan):
http://www.freewebs.com/spazmochad/Diag.bmp

If I can't use both channels safely then I'll guess I'll just hook it up to one for lfe data.

Urizen
08-14-2006, 08:07 PM
Is the Boston sub passive or powered?

spazmochad
08-14-2006, 08:16 PM
Tis passive, its the under floor model here (http://www.bostonacoustics.com/home_product.aspx?category_id=6&product_id=209).

I figure I'll just shove it under my bed rather than under the floor :smoke:

grateful
08-14-2006, 08:21 PM
That connection scheme will show you the magic smoke. Definately not recommended

Lefty
08-14-2006, 10:00 PM
There are a few SUB woofer drivers that have two independent voice coil windings (four speaker terminals). That is the only case where your idea could be attempeted, all other single winding drives would certainly cause smoke and failures in the driving electronics.

Lefty

blownsi
08-14-2006, 10:35 PM
There are a few SUB woofer drivers that have two independent voice coil windings (four speaker terminals). That is the only case where your idea could be attempeted, all other single winding drives would certainly cause smoke and failures in the driving electronics.

Lefty

Actually any dvc driver would do the job. Not just a sub. At least Polk I know makes a dvc in ceiling surround speaker.

spazmochad
08-15-2006, 04:34 AM
Thanks for all your replies, I'll just wire it to one channel for now. If I ever get a better soundcard, I'll just take the lfe channel from it to another amp. Perhaps I may even find an SA1 amp for the same sort of price I brought the sub one day.

scolba
09-03-2006, 10:01 AM
is your amp bridgable??

KingBubba
09-03-2006, 01:33 PM
Its not the boston sa1 but it most likely would serve your needs. No affiliation.

http://cgi.ebay.com/NHT-SA-2-MONO-SUB-SUBWOOFER-POWER-AMP-AMPLIFIER_W0QQitemZ280024396025QQihZ018QQcategoryZ 67786QQrdZ1QQcmdZViewItem