Question about Jl Audio 250/1 Car Audio Amplifier

1 Answer

??Confused and angry!

I have a JL 1200A mono amp and has been working fine- today i was cleaning up the wiring mess i had. well i had disconnected the RCA's that go to the amp and had just finish tightining the ground wire... i pluged the rca's back in but accidently placed them into the pre-outs instead of the Ch1. Ch2. - redlight flashed... i tried just correcting the rcas i have a green light... but no bump from the subs... Plz help!

Posted by on

  • vazquezp Sep 17, 2007

    well i tried using a smaller amp that i had laying around.... not very strong tho... i won't push the 12's. but it works ... so i don't think it would be the stereo...



1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 752 Answers

Try hooking an mp3 player or some other source into the amp (in place of your car stereo)while the car is running to test it. You may have damaged the output of the radio. If not report the results here.

Posted on Sep 15, 2007


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

A 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Good luck!

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

I have power to my Jensen 400 watt amp. But no

It's possible the output stage(s) of the amp are blown. Check all audio wiring connections to the amp, input and output, to make sure nothing is loose or disconnected. Also, try wiring up a different sub to verify it isn't the sub that's bad.

Aug 28, 2014 | Car Audio & Video

1 Answer

I hooked up my two 10 inch JL Audio W3v2 2 ohms to a mono JL Audio 500.1 amp and the subs will not work. I have the subs wired in a series. I then hooked them up to my friends amp and the subs worked. Any...

try one at a time. if they work then try hooking them up differently. if none work, then check to see that your amp is not in protect mode. if amp is ok, then check to make sure you have your rcas connected to your amp. in other words, re-check all your wiring. if still nothing, try your amp on your friends car and vise versa.

Apr 01, 2010 | Jl Audio 10W3v2 Car Subwoofer

1 Answer

1 10 jl jl 250/1 mono block amp cuts off an on help

your subwoofer is wired incorrectly to your amplifier. Figure out which ohm load of subs you have and then what ohm load options your amp is stable at. Next go to either the Crutchfield website. find their learning center. go to subwoofer wiring diagrams. or go to and find their section on it

Jun 11, 2009 | Jl Audio 250/1 Car Audio Amplifier

1 Answer

I have a JL Audio 12 ich subwoofer rated at 8 ohms. also a mono block insignea amplifier at one ohm stable 1-4 ohms. how to i wire it safley? possible?"

Your amp based on what you say would have no problems whatsoever with an 8 ohm load, not even if it actually has dual 4 ohm coils and you wire them in parallel giving a 2 ohm load (don't know your particular sub).

Every good car amp has protection circuits to prevent itself or the speakers from damage from too low loads so it shouldn't be a problem even if you screw up with your calculations. A good amp should even be capable of dealing with a dead short on a channel, zero ohms, activating protection of course.

Good luck and don't worry!

May 26, 2009 | Jl Audio 12W0 Car Speaker

1 Answer

How do i wire a jl w3 to a jl 500/1 mono

wire the sub in series it will give you best bang

Mar 16, 2009 | Jl Audio 12W3 Car Subwoofer

1 Answer

Subs cuttin out w/ random hits

it is most likely a loose wire or your RCA jacks need to be replaced for proper signal processing check all of your wires for continuity.

Feb 03, 2009 | Jl Audio 250/1 Car Audio Amplifier

1 Answer

10w6 jl audio subwoofers

I would say since your amp is a mono, wire the 3 subs in series in the box,, with only two leads going to the amp

May 16, 2008 | Car Audio & Video

3 Answers

Confused about system

If what you're telling me is correct you're trying to drive a stereo sub -woofer with a mono amplifier. If so, that could be a bad situation for the amp, if the voice coils are not wired together correctly. Before we go too far, I have some questions I need answered.
1. Is the MA unit an M1889i?
2. Do you have the 4 terminals of sub-woofer tied together. For example the 2 positive terminals are tied together & the 2 negative terminals are tied together?
3.How do you supply 12VDC to the amp?

While I'm waiting to hear back from you, I'll try to draw a schematic (wiring diagram) of the way it should be wired for your particular setup that I'll send to you.

Mar 06, 2008 | MA Audio M1889I Car Audio Amplifier

1 Answer

My JL subs just dont beat like the ONES IVE HAD before as well as the ones my friends have had

sounds like they have your sub amp in mono but they put the speakers in series which totally cancels the benefit of running your amp in mono. you will probably be happier if you just hook the left speaker to left plus and minus and the right to right plus and minus. Cuz even though subs aren't directional they do pass some higher frequencies that are and that dilutes the stereo effect.

Jan 19, 2008 | Jl Audio 500/1 Car Audio Amplifier

Not finding what you are looking for?
Jl Audio 250/1 Car Audio Amplifier Logo

54 people viewed this question

Ask a Question

Usually answered in minutes!

Top Jl Audio Car Audio & Video Experts

Mark Skinner

Level 2 Expert

77 Answers

Tygh Duval
Tygh Duval

Level 2 Expert

300 Answers


Level 2 Expert

150 Answers

Are you a Jl Audio Car Audio and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides