Need advice please


Built not bought JK

CarAudio.com Newbie
Jan 8, 2021
9
2
Las Vegas, NV
I have a 2016 jeep Wrangler Unlimited Sport, saved for a year to build my audio system “correctly “. Feeling like I may have made a mistake.
Head Unit Apline i209
Highs and Mids, Infinity Kappa
Sub JL Audio W7-12
Highs and mids amp JL audio 8channel/800w
Sub Amp JL Audio vx1000.1
My question is, I really feel like I may have made a mistake with my sub amp purchase.
My understanding is that my w7-12 is a 3 ohms sub
The vx1000.1 I bought only gives a 1000 true watts (which the sub calls for) at 1 ohms. It says it is 600 watts at 2-4 ohms. So I am potentially way under powering my sub. What 1200-1500 watts amp would you guys suggest?
I would like to run my sub at the very least with 1000 true watts.
 

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gramser57

Senior VIP Member
Dec 9, 2011
154
0
Washington
Since you are running a W7, which is geared towards SQ, I would suggest an amp that is efficient and puts out clean power at 4ohms since that is what your sub will be reading at accounting for box rise. The only amp that comes to mind is a Rockford Fosgate T1500BDCP but it comes at a price.
 

pukaka

CarAudio.com Newbie
Jan 16, 2021
4
0
nevada
Unfortunately! I really like this girl's style but unfortunately there is no chance anymore, thank you for creating a better style. run 3
 

metalheadjoe

Registered User
10+ year member
Oct 21, 2007
345
203
ND
JL's slash or hd series would fit the bill, but damn are they proud of them. Need a budget to start with.
 

ThxOne

AudioFreak
Jun 8, 2018
3,433
704
Saint Marys, GA
I would use the sub amp you already have. 650w rms is at 12.5v and 3ohm - 800w rms at 14.4v and 3ohm
JL Audio says that the optimum power to that sub is 750w (400-1000w is the recommended amplifier power range)
Build the correct enclosure and you will be more than fine.
 

Built not bought JK

CarAudio.com Newbie
Jan 8, 2021
9
2
Las Vegas, NV
  • Thread Starter Thread Starter
  • #8
What box is your JL in? I have a bit of experience with designing JL enclosures.
I had a custom fabrics box built for my w7 with the correct airspace etc.. I am considering the fosgate bd1500 or the JL hd1200. Both run continuous power between 1-4 ohms. I know my VX 1000.1 gives 600w at 3ohms, I would just like to actually power the sub closer to specs. Any thoughts about the 2 amps I’m considering
 

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Built not bought JK

CarAudio.com Newbie
Jan 8, 2021
9
2
Las Vegas, NV
  • Thread Starter Thread Starter
  • #9
I would use the sub amp you already have. 650w rms is at 12.5v and 3ohm - 800w rms at 14.4v and 3ohm
JL Audio says that the optimum power to that sub is 750w (400-1000w is the recommended amplifier power range)
Build the correct enclosure and you will be more than fine.
Here is my enclosure. It is custom fabricated to the spec JL ported air space.
 

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Built not bought JK

CarAudio.com Newbie
Jan 8, 2021
9
2
Las Vegas, NV
  • Thread Starter Thread Starter
  • #10
Since you are running a W7, which is geared towards SQ, I would suggest an amp that is efficient and puts out clean power at 4ohms since that is what your sub will be reading at accounting for box rise. The only amp that comes to mind is a Rockford Fosgate T1500BDCP but it comes at a price.
I am in between the fosgate bd1500 and the JL hd1200. Any opinions or thoughts. Still trying to sell my new VX1000.1😞
 

Kickstand

CarAudio.com Well Known
Jan 1, 2021
297
78
Maple Ridge
The specs for the VX1000 say that 14.4 volts it will put out 800 watts @3 ohms.
For a sub that's ratted at 400-1000 watts that should run it just fine.
 

Built not bought JK

CarAudio.com Newbie
Jan 8, 2021
9
2
Las Vegas, NV
  • Thread Starter Thread Starter
  • #13
The specs for the VX1000 say that 14.4 volts it will put out 800 watts @3 ohms.
For a sub that's ratted at 400-1000 watts that should run it just fine.
Maybe I don’t understand things fully my question would be how do I run at a normal or constant 14.4 V I have a yellow top optima battery and my stock alternator it normally runs around 14 or 14.1
 

hispls

CarAudio.com Veteran
5,000+ posts
10+ year member
Sep 10, 2009
11,621
554
Central Maine
JL hd1200
Is a very good match for W7. If money isn't an issue, might as well stick with JL all around on amps, they're spendy but they are solid quality and will hold good resale value if you keep them clean.

That said, you may be happy enough with the smaller amp. The difference between 650W and 1200W is going to be 2 clicks on the volume knob at best.
 

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