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one sub two amps?


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gcorrea 
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Posted: September 28, 2006 at 11:26 PM / IP Logged  
can you wire two identical amps to a single sub.
for examlple two 350 watt mono amps into a kicker L7 each amp into a coil at 4ohms. is it possible. would the speaker have any negative side effects to this wiring? would each coil work correctly? anyone ever tried this before?
gcorrea
Clean Install 
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Posted: September 28, 2006 at 11:48 PM / IP Logged  

never tried it but there are amps out there i know crossfire has one u can use 2 amps and one is a slave amp

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i am an idiot 
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Posted: September 29, 2006 at 5:14 AM / IP Logged  

      Yes you can and yes it has been done many times.

jeffchilcott 
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Posted: September 29, 2006 at 10:09 AM / IP Logged  
I would highly not reccomend trying to run 2 amps to a sub when the amps are not strappable.
Thier are alot of amps that are...what type of amps do you have?
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aznboi3644 
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Posted: September 29, 2006 at 3:45 PM / IP Logged  
What if you have a dual voice coil sub and you have two amps??
Like one amp to one coil??
Possible...not strapping
jeffchilcott 
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Posted: September 29, 2006 at 5:26 PM / IP Logged  
possible, but without a very very accurate meter to set the gains on both amp and make sure 100% that they have less then 1% variance, then it is very very possible to destroy a woofer
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Flakman 
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Posted: September 29, 2006 at 5:58 PM / IP Logged  
nouseforaname wrote:

i don't believe it will damage anything. Dan Wiggins wrote a paper where he discussed this. he even mentioned you can wire one of the coils out of phase with absolutely no negative side effects. they would simply cancel each other out.

...and actually, having them out of phase is even safer than not. The sub actually should move less which means less heat generated and less excursion. Of course this leads to less bass.

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dstang24 
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Posted: September 29, 2006 at 6:21 PM / IP Logged  

Wouldn't connecting them in opposite polarity be deadly to the speaker???  It would still move current through the speaker while the speaker wasn't moving.  That means there is heat building up from the electrical current and no movement of air within the vent, causing the speaker to heat up very rapidly.  >> Eventually smoking the coils.

That's just my logical deduction, I could be wrong...

-Dstang24

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i am an idiot 
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Posted: September 29, 2006 at 6:31 PM / IP Logged  

        Very accurate Dstang.    The guy has a Dual voice coil woofer as he mentioned in the original post.

How did we get to hooking coils up out of phase.

gcorrea 
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Posted: September 30, 2006 at 12:10 AM / IP Logged  
to set the gain as close as possible to each other, i was going to turn the amps to max setting and using the crossovers gain to drive both of the amps at the same level instead of trying to match each amp individually. is this a good idea? they are two phoenix gold 2350 rated at 350 watts mono rms, running a single dual voice coil 12" kicker L7. the reason im only using one L7 is because i dont have enough air space under the rear seat of my nissan titan. if i build the box to fit perfectly under the seat and out of the way, i yield just about 2.2 cubic feet. just enough for one sub and the bass im looking for. my other option is to run two 12" kicker comp vrs, one to each amp, but each sub would sit in about 1 to .85 cubic feet. kind of small if you ask me for some descent bass. what should you guys think i should run with. what set up. would you think yield the most bass. thanks for all of your input.
gcorrea
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