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Help with amp

How do i set it to make a 12 w7 slam and sound good

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  • sneeky May 11, 2010

    Would need some more info? Car type Amp model Enclosure type

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  • 117 Answers

BOX HAD TO HAVE CORRECT AIR SPACE FOR SUBS TO SOUND RIGHT . CHECK MANAUL FOR SUBS FOR QTS FS, HZ SPECS ,BUILD BOX ACCORDINLY USE MDF(MEDIUM DENSITY FIBEROARD ) OHMS MUST MATCH AMPS TOLERANCE, 2 OHMS ECT ....

Posted on Nov 14, 2009

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Posted on Jan 02, 2017

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1 Answer

I have a jl audio 12 w7-3 sub and it just stopped working and wont work anymore,what could it be?


Check your fuses on your amp power lead and amp or make sure your amp is turning on the should be a light somewhere amps can break more times then the sub. Check all your connections or check your amp and head unit settings most probably a fuse mine blow sometimes

Jul 26, 2014 | Car Audio & Video

1 Answer

I have a w7 keyboard ,given to me free,but with no owners' manaul,when I plug in amp there was no sound coming out I do not why?


There should be a headphone jack... try headphones first...

If no sound from the phones with the volume control up, the unit MAY have lost settings due to depleted memory battery.

Look on the web for "factory reset" procedure for the W7.

Sep 14, 2010 | Yamaha Portable Keyboard

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I have installed a 12" w7 and jl 1000/1 v2 amp. I was useing the bass knob untill i found out on the jl website that its not needed for this set up. I was haveing problems blowing 80 amp fuses so i went...


It is NEVER a good idea to increase the values of fuses . Chances are you have internally damaged your amp. The next time you are faced with this problem you need to find out why your amp is blowing fuses and not keep changing the value of the fuse.

Aug 20, 2010 | Jl Audio 12W7 Car Subwoofer

2 Answers

My cone on my JL W7 cone is cracked, How can I replace?


JL has good customer service, and usually you can get a drop-in replacement core/coil/former/spider. Call/e-mail the techsupport listed on their website, or contact your local dealer for replacement parts/service.

Jun 16, 2010 | Jl Audio 12W7 Car Subwoofer

1 Answer

I got a jl w7 12 in a seald box runnin it with a 1100 watt rms hertz audio amp n its not even loud..how can i mke it luder


try looking @ your amp seeing if it is bridged if it is take look @ this video it might help you.

Jan 26, 2010 | Jl Audio 12W7 Car Subwoofer

1 Answer

When I hook my JL W7 sub to my alpine mrd m1005


You need to have the amp bench tested at a car audio shop. Sounds like a dead short in the amp. Try turning the crossover on the sub "off" and connect any other speaker to it. if you have the same outcome, your amp needs serviced. Post a comment with your results and if I can think of anything else you could try beyond that I will. Hope this helps

Aug 17, 2009 | Car Audio & Video

2 Answers

How to factory reset my W7? when turn it on in w7 loading page my w7 hanging!


Hi there,

Hold the Play Button for 12 seconds, it'll automatically reset.

Good Luck!!

May 06, 2009 | iRiver W10 Digital Media Player

1 Answer

I have a Hifonics XXV Colossous and 2 JL 500/1's. I want to know which I should use to push my 2 12" W7's to get my full money's worth and the best of the subs. Also if someone can describe how I should...


i highly recomend you use the hifonics colossous and wire the subs @ 2 ohms and you would be right about nominal power handling for the W7 which is rated @ 1000W, and your amp would push about 1100W to it. just be carefull when adjusting. and the best advice i can give you on the settings is as follows: Turn up the volume to the desired listening average level. (what you would normally have it on when driving) then adjust your amp by turning the different controls up, and then back down a 1/4 turn after distortion occurs. in your case with so much power dont turn them up all the way right away ease into it be gradual listen to the change in the sound.

Mar 04, 2009 | Jl Audio 1000/1 Car Audio Amplifier

2 Answers

Jl 1000/1 popping fuse


well you need to check to see if nt no shottage with the amp and also check if the fuse is not to low amp 20,,,, 25 if not put the amp in a separet 12 volt battery

Dec 10, 2008 | Jl Audio 1000/1 Car Audio Amplifier

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