Ok, if you were to purchase 2 x 12/10 W6V2, which are only available in Dual 4ohm Voice coils. Then the following would be true.

If one amp would be powering both then it could only run them at either a 1ohm, 4 ohm. Unless you have an amplifier which will run higher than 14ohm!

You CANNOT run 4 x 4ohm voicecoils at 2ohm. As running them parallel would produce a 1ohm load, and running them in series/parallel would produce a 4ohm load.

Therefore, you would need and amplifier which would produce the recommended 900RMS at either 1 or 4ohms.

Amp's which spring to mind. JL 1000/1, Tantrum 1200/1, Genesis Profile Sub, and.. although I dare to say it.... Vibe VP4.

Jamie

quote:

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Originally posted by corb
Right, sell your amps and get an 800RMS @ 4Ohm amp. A phoenix gold QX900.1 is 1100 x 1 @ 2 Ohms. These can be picked up for around £350 and are exactly what you want, sell the tantrums and buy the QX.

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quote:

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No, your amp is 250RMS x 1 @ 4Ohms bridged. Each voice coil on the JLW6V2's are 4Ohms. So with one sub, which has two voice coils, youd bridge the amp into a single channel onto one coil and do the same with the other amp/voice coil. Each amp would thus be seeing a 4 ohm load. Ultim8DTM5, I dont think he really wants to spend that much, and those amps wouldnt really power it very well would they. [/img]
Unless you could daisy chain the PG amps, which I don't think is possible, I wouldn't advise it. Time to upgrade amps! :D Not to mention the amps smoking from not being 1 or even 2 ohm stable...

quote:

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Originally posted by CorsaSRi16v
So it would be Ok to run the 2 amps like I am on about doing?

How much am I looking at paying for one then?

Do you recommend the 10" or the 12"?


Oh yeah I've got a 12W7 sitting in my room at the moment that I was going to put in my car ;)

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I'm using a 10W7 as a paperweight haha, its a SVC just like the 12, but the 13 is DVC. I would advise upgrading your amps or using them elsewhere such as front/rear duties. For the 10 and the 12 a JL 500/1 will be ample and go nicely. For the 13W7, same amp will be fine, however to max potential look at the 1000/1. My advice would be keep the 12W7 and upgrade the amplifier(s).

Good luck!

Right, sell your amps and get an 800RMS @ 4Ohm amp. A phoenix gold QX900.1 is 1100 x 1 @ 2 Ohms. These can be picked up for around £350 and are exactly what you want, sell the tantrums and buy the QX.

WHAT!!!!! YOU GIT! Didnt tell us that you fcuker. I'll have a look at what power you need, cos youd be much better off with that, gimme 5 mins.

So it would be Ok to run the 2 amps like I am on about doing?

How much am I looking at paying for one then?

Do you recommend the 10" or the 12"?


Oh yeah I've got a 12W7 sitting in my room at the moment that I was going to put in my car ;)

No, your amp is 250RMS x 1 @ 4Ohms bridged. Each voice coil on the JLW6V2's are 4Ohms. So with one sub, which has two voice coils, youd bridge the amp into a single channel onto one coil and do the same with the other amp/voice coil. Each amp would thus be seeing a 4 ohm load. Ultim8DTM5, I dont think he really wants to spend that much, and those amps wouldnt really power it very well would they.

But they are nice subs :)

Thanks Ian for posting for me ;)


Right I am still trying to get my head around this dual voice coil business.

So with it being DVC does that mean that I can use my 2 PG Tantrum 250.2's bridged to 1 * 250W RMS each? I.e one powering one voice coil and one powering the other.

Also I've forgetten all about the Ohm business. The Amps say that they run at 1* 250W RMS @ 4 Ohm. So if I did use my two amps would that put a 8 Ohm load on the sub? If so would that kill it? (I can't remember sorry :lol: )

Model: JL 13W7
Price: over $1k AUD
Size and Ohm: 14inches, 1.5 ohm DVC
Boxes:
Sealed = 1.875 cu.ft/53.1L
Ported = 2.375 cu.ft/67.3L, large slot port tuned at 30Hz (will yield 3-4dB over sealed minimum)

Power: 1000RMS continuous, more for burps.

hes sleepin so wil check tm

JL 12W6V2 or 10W6V2

"runnin it off 2x 250.2 PG tantrum amps
250w *1@4ohm and 125w*2 @2ohms

the sub is only available as a dual 4. So the amp would need to be 250RMS @ 2 ohms. Either that or they are actually 400 RMS subs, but can take more. So find out how powerful the amp is @ 2 ohms. I would imagine they are 150RMS approx if they are 250RMS @ 1 ohm. Or, WHAT AMP IS IT?

he replied
"i jus want 1 500w rms dual voice coil sub
that can be run off 2 250w rms amps"

probably be the 12W6V2 for him tho as he likes to keep his SQ, how many does he want, one or two?

http://www.jlaudio.com/subwoofers/RP_Chart.html

postin for corsasri16v

do JL make a dual voice coil 500W RMS sub?
if so much for?
model? size and ohm are they?
what sort of size box will they run in
and do they need a ported or sealed box