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JBL amp in closed boxed subwoofer, I changed my headunit in car from an Alpine to Sony, sub worked perfectly fine. Then other day didn't have the same sound. As if lacking bass/flex and cones in sub. Checked amp attached to sub, none of the 3 blue Led's flashed. Still getting little feedback from head unit. Could this be fault with the 2x 20amp fuses in Amp?? Help would be appreciative.

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

simplemitch
  • 752 Answers

SOURCE: subwoofer works at high volume, doesnt work at low volume

You had the settings set incorrectly and overdrove it. The voice coil leads are burn't open. If you look at the little flexible braids by the terminals I'll bet they are black/brown and maybe even burn't in half. It's toast.

Posted on Sep 22, 2007

  • 2 Answers

SOURCE: Rampage BA-100 200W amplified subwoofer

Actually. I don't think you have to wire a remote switch from the radio to the amp on this product. This powered subwoofer supposedly has automatic signal sensing turn-on circuitry. I have the same problem. So I think I'll try to just hook up the power (to the battery), ground and the + / - speaker wires to one of the back speakers in the car and see if that works.

Posted on Mar 05, 2008

  • 108 Answers

SOURCE: amp works but no sound from sub

Some older Pioneer radios require you to connect the Subwoofer RCA to the rear output on the back of the radio and then you have to turn on the subwoofer in the menu on the radio. What model Pioneer radio is it? Also, make sure that the RCA plugged into the amp is on the input side, not the output side.

Posted on Aug 10, 2008

  • 3 Answers

SOURCE: my sub quit working

first off you should have installed an inline fuse block that fuse will pop first an inline fuse is cheap go to a wall=mart it will run you around 10.00 that gets mounted under your hood cut your power cable in half the one part of the cable should be cut 12 inches that will tie into your possitive terminal on your battery after that is all tightened to your battery you will strip about an inch of coating offf of your power wire tie that into the end of your fuse block make sure it is tight than do the same to the other side just measure from there to your mounting spot for your amplifier and tie your power cable into your amplifier use 8 gauge power and ground cable... your problem with your amp is that you burned up a couple capasitors or even a resistor i just fixed an amp that both fuses were smoked just tear your amp apart look under the control board you will see were a sauder joint is cracked those capasitors and resisters are very cheap there made out of ceramic i just got done repairing my friends amp works like a new one.. good luck if you have problems or w you get it fixed email me.. gordo8785@yahoo.com best of luck buddy..

Posted on Jan 10, 2009

  • 4 Answers

SOURCE: 3 amps 2 subs sound system for car, need wiring help

it is easy to hook it up!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Posted on Jan 14, 2009

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1 Answer

I have a 12" d4 type r 1000 rms and a alpine 1000 amp speaker sounds great but smells like something is burning, my amp never over heats or shuts down but the smell is still coming from the sub?


Cut your gain back on the amp. It sounds like they are set too high. Check your install instructions on how to set your gain. If you have a 4 or 5 volt output head unit your will not be at half way. Im running a JL Audio 500 /1 on a skar wwv10 dvc in a ported box. My gain is set about half way & its plenty loud.I have a Alpine 9887 headunit 5 volt output on my RCAsI can take a volt meter & set my speaker output at 45amps & my gain in perfect.

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Hook each amp to one of the voice coils. Be sure both amps are getting the same mono signal. Don't run one with the right side of your headunit & the other on the left. It will sound bad & tear up the sub.

Feb 10, 2014 | Alpine Car Audio & Video

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Disconnect all speaker connections and rca cables. Leave power, ground and remote wires intact. Try turning on again. If you still have a protection light your amp is faulty. Hopefully you have warranty. Using an ohm meter to the sub will confirm whether its bad or not. Invest in a cheap test set of 6.5" speakers.
.A thumbs up would be greatly appreciated if this answer is helpful to you.

Jun 02, 2013 | JBL BP600.1 Car Audio Amplifier

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What box should i use for alpine swr-12d2


What size box does this sub need in a sealed box & a ported box. If you have room use a ported box that fits your subs. Probox & other brands may have the perfect box for them. I would tune the box to 40hz if you like loud tight bass.

Jan 24, 2013 | Alpine 2 Swr-12d2 Car Ausio 12" Dual 2-ohm...

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I want a great sound system in my van. what do you advice and how much will it cost?


go pioneer, best bang for your buck. you'll prolly wanna buy a headunit, 4 componant speakers, one 10in sub, one 4 channel 500watt amp, sub box, and wiring. pricing depends on how high end you go i recommend:

Headunit: Pioneer, price depends on model, a nice one=120-150, you'll prolly need a dash kit so it'll fit your van, wal-mart like 15$, and also a wiring harness to plug into your factory wires, again wal-mart like 7$

Speakers: depends on the van, buy speakers that are the same size as your factory so changing them'll be easy. Buy pioneer, that'll handle about 60-70 watts RMS. you'll prolly pay about 120 for a pair.

Sub:Pioneer ts-w257d4 60$

Amp: Alpine mrp-f550 210$

Sub Box: Scosche, available at wal-mart, 30$

Wiring Kit: Schosche, Also at wal-mart, 30-35$

Pricing on sub, amp, headunit, and speakers comes from sonicelectronix.com, another good website is onlinecarstereo.com So a grand total for materials is gonna be 775-850 after shipping on online bought stuff.(onlinecarstereo.com has free shipping on orders over 100$)
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Oct 07, 2009 | Jl Audio 12W3 Car Subwoofer

1 Answer

Sub cutting out


Check the 12v wire running from the battery to the amplifier. Also the sony explode is a garbage subwoofer compared to the Alpine.. sony (they say 1200w max but its more like 100w to power the thing) Amp could be going. Is the amplifier hot when running. If there is a burnt smell comming from the amp, its the amplifier

Mar 27, 2009 | Alpine Type-R SWR-1222D Car Subwoofer

1 Answer

Amp works but no sound from sub


Some older Pioneer radios require you to connect the Subwoofer RCA to the rear output on the back of the radio and then you have to turn on the subwoofer in the menu on the radio. What model Pioneer radio is it? Also, make sure that the RCA plugged into the amp is on the input side, not the output side.

Jul 29, 2008 | Sony XM-2002GTR Car Audio Amplifier

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