Huge Question!!! About Ohm's

[mxjosh711 10+ year member]

I HAVE A JL 12W7 AND IM USING A JL 500.1

the sub is a 3 ohm 12w7 and the amp says its 500.1 at 1 ohm...... does that mean im only getting 1/3 of the power to my sub? so if i buy the 1000.1 its only going to give me 1/3 of the power?

i dont understand this ohm stuff yet...... please help

why would jl have a 3 ohm sub if their amps were not goign to make it to where it can use all of its potential?

also, which would be better..... the kicker sx 1250.1 or jl 1000.1

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[PhatTonyDeMarco 5,000+ posts]

Is that subwoofer DVC 3 ohms, or is it SVC 3 ohms? I wasnt aware that they came in 3 ohm loads, possible it is DVC 1.5 ohms?

 

[tRiGgEr 5,000+ posts]

No that JL amp is designed to produce rated power @ 4-1ohms. So you're getting full power.

 

[squeak9798 5,000+ posts]

Is that subwoofer DVC 3 ohms, or is it SVC 3 ohms? I wasnt aware that they came in 3 ohm loads, possible it is DVC 1.5 ohms?

The 12w7 only comes with a 3ohm SVC.

 

[Moe Lester 10+ year member]

i think that 500.1 does 500w from 1.5 to 4 ohms, so you should be getting what its rated at

 

[squeak9798 5,000+ posts]

I HAVE A JL 12W7 AND IM USING A JL 500.1 the sub is a 3 ohm 12w7 and the amp says its 500.1 at 1 ohm...... does that mean im only getting 1/3 of the power to my sub? so if i buy the 1000.1 its only going to give me 1/3 of the power?

i dont understand this ohm stuff yet...... please help

why would jl have a 3 ohm sub if their amps were not goign to make it to where it can use all of its potential?

As Trigger said; those JL amps will produce the same power at anywhere from 1.5ohm to 4ohm. So no, you are not getting 1/3 of the power

also, which would be better..... the kicker sx 1250.1 or jl 1000.1

If you want ~1000w RMS into a single 12W7, you'd want the JL 1000/1 out of those options.

 

[mxjosh711 10+ year member]

hmm well then it sounds like the guy at the sound shop didnt know a thing he was talking about, he was trying to say if the sub was 3 ohm and the amp was 1 ohm then for every ohm the amp has to go up to match the sub, the power is reduced by 1/2 . he was trying to tell me my sub was only getting about 175 watts. .......... anyways since you guys know what your talking about .... jl 1000.1 or sx 1250.1? thanks josh

 

[mxjosh711 10+ year member]

cool well 1000.1 it is........ (hops over to ebay)........