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duel 4 ohm sub 

 

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 Post subject: duel 4 ohm sub
Posted: Tue May 26, 2009 7:24 pm 
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ive got an alpine type s duel 4 ohm
is it ok to run on a 2 ohm load ?
also ive got this old sub and it only has a single negative and positive terminal is there any way to make 2 ohms out of that ?
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 Post subject: Re: duel 4 ohm sub
Posted: Tue May 26, 2009 9:40 pm 
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If it's got dual 4ohm, then yes you can still run it at 2ohm. Make sure you put the two terminals in parallel and not in series. It depends on your amplifier if it can handle 2 Ohm or 4 Ohm or even 1 Ohm. If your amplifier can only handle 4 Ohm, it is wise not to run your subs at 2 Ohm load or else you'll kill your amp.

I don't think you can make 2 Ohms out of the extra single voice coil sub...however running your dual voice coil in series to make 8 Ohms and then in parallel with the 2nd sub will deduce the rating to 4 Ohm...if you want to run it at 4 Ohm.

Hope that helps.

phong =P~

 

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 Post subject: Re: duel 4 ohm sub
Posted: Tue May 26, 2009 10:19 pm 
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Just looked up the Alpine website and they dont even give specs on the coil ohmage! I find it pretty crap that they would offer a dual 4 ohm voice coil as the only good options are 8 or 2 ohms where as most amps safely operate at 4 ohms. I have dual 2ohm JL sub that gives you the option of a standard 4 ohm or a serious 1 ohm. Maybe they do offer other options but the website is rather vague.
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 Post subject: Re: duel 4 ohm sub
Posted: Wed May 27, 2009 10:46 am 
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will it sound any good tho
it says in the manual of the amp that it can be put into a 2ohm load nd shows you how its done
what you mean running in pararell how do i do this ?
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 Post subject: Re: duel 4 ohm sub
Posted: Thu May 28, 2009 12:21 am 
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joolz wrote:
Just looked up the Alpine website and they dont even give specs on the coil ohmage! I find it pretty crap that they would offer a dual 4 ohm voice coil as the only good options are 8 or 2 ohms where as most amps safely operate at 4 ohms. I have dual 2ohm JL sub that gives you the option of a standard 4 ohm or a serious 1 ohm. Maybe they do offer other options but the website is rather vague.


Sorry bit off topic but s**t yeh they have the dopes the previous alpine lineup all woofer models had under the tech specs tabs listed the ohms per coil rating - doh! lol

SWR-1222D = SubWoofer (SW) TypeR (R) - 12" (12) 22 (2+2ohm) D (DVC)

I was gonna say as they supply both dual 2 ohm coil and dual 4 ohm coil configurations across almost all their woofer ranges

 

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 Post subject: Re: duel 4 ohm sub
Posted: Sun Jun 07, 2009 3:46 pm 
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To get a 2 ohm load you would have to run 2 4 ohm subwoofers in series the 2 combined well equal to a 2 ohm load
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