Out Of Phase Speakers

[tplaya07 10+ year member]

i have 2 RE SX 15's (dual 4 ohm) powered by an orion 2500d wired down to a 1 ohm load in a ~7 cube box tuned to 32 Hz

You want to make sure your subs are wired like this (option 1):

http://www.rockfordfosgate.com/rftech/wiringwizard.asp?WoofQty=2+woofers&WoofImp=Dual+Voice+Coil+-+4+ohms+x+2&image.x=13&image.y=8

 

[jujumantb 10+ year member]

OK. I guess Im just not understanding your point. My statement that you quoted was basically the same thing you said in your first sentence, isn't it? Or am I missing something you are saying?
A sub out of phase with another subs will likely cause cancellation and minimal volume levels (unless isobarik push-pull configuration). Yet both subs can be out of phase with the rest of the speakers in the system.

I guess I just misunderstood ya.

you said..

Subs can be out of phase with the rest of the system, but not out of phase with each other, unless isobarikly (sp??) mounted in a push-pull configuration.

and I thought you meant they CANT PHYSICALLY be out of phase with eachother but now I see you meant... //content.invisioncic.com/y282845/emoticons/tongue.gif.6130eb82179565f6db8d26d6001dcd24.gif

 

[tplaya07 10+ year member]

My bad..probably should of worded that better.

 

[walkychalky 10+ year member]

You want to make sure your subs are wired like this (option 1):
http://www.rockfordfosgate.com/rftech/wiringwizard.asp?WoofQty=2+woofers&WoofImp=Dual+Voice+Coil+-+4+ohms+x+2&image.x=13&image.y=8

what would happen if everything was wired as it is in that picture except where the 1 ohm is the wires were reversed, as in the positives were connected to the negative and the negatives to the positive on the amp?

 

[tplaya07 10+ year member]

You would still be wired at 1 ohm, just out of phase.

When dealing with imaging/staging, if the subs seem to draw alot of presence to the rear (or wherever the subs are), you can sometimes invert the polarity to help this out. It is also dependent on what crossover setting you have the subs set at, as well as the midbass.