Question about Jl Audio HD600/4 Car Amp

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I installed a jl hd 600/4 amplifier that drives 4 boston acoustics pro60 se components. After 3 months of playing very well, the amp starts to trip, then it will come back on, then trip and so on. The led light is flickering red and green when it trips. I checked everything from power to connection to impedance. Everything is okay. I also have 2 Slash V series and they both are working very well. Can someone help me with this.. my email address is please email me you views. thanks!

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

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Posted on Jan 02, 2017

  • 116 Answers

SOURCE: Green light blinks slowly on my JL Audio 300/4 amp

Check your fuse at the battery. While AGU glass fuses "look" good, when you read the voltage AFTER the fuse, you can only be getting 5 volts or so. I can't tell you how many times I have seen this.

Larry T
Winona Lake, IN

Posted on Jan 28, 2009

  • 12 Answers

SOURCE: Jl 500/1 amplifier will not turn on

you may have burned the channel you were using..try taking the cover off the amp and checkin for burned spots or any wires that may be loose or touching within the amp.

Posted on Feb 26, 2009

  • 150 Answers

SOURCE: jl audio 1000/1 low voltage -keeps shutting off at high volume

You should definitely upgrade the power wire to the sub amp to 4 gauge -absolutely your choking your amp its starving for current-poor thing is starving !!!!!!!

Posted on May 12, 2009

  • 59 Answers

SOURCE: Jl Audio Slash v2 500/1v2 Car Audio Amplifier.

I've had similar problems, usually for me it ends up being a bad ground.

Posted on Feb 23, 2011

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1 Answer

Boston acoustics sa1 schematic

boston acoustics sa1 schematic • To have the board working prepare the tools and equipment.

and schematic is only a guide to help you identify burnt or missing


• Identify which part of the circuit drives the speaker

• Search on line for datasheets for possible main components

( on most are free )

• These board can be triggered by a 12V supply or by a source.

• Here is a guide , how to trace ......

speakers2.png Computer Speakers

• these guide may not be the same as yours , but the principle

in tracing is the same.

Level of difficulty:

• Hard, for a begineer

• Easy for those who have started already troubleshooted similar


Estimated Time of Servicing:

Skilled Tech: about 3 hours or less

Newbie : Could be from 3 days to a week

A signal tracer is needed, together with the signal source.

Sodering Iron or similar

and a lot of patience.

• A good amp never produce an output of over 0.7V, with no

signal on its input.

Hope these helps,

thanks for choosing Fixya for assistance.

Jul 29, 2012 | Boston Acoustics Voyager SA1 Amplifier

1 Answer

I got Sony Xplod XM-ZR704 700W 4/3/2-Channel Car Stereo Amplifier and 12" sub. it play good for continuous 2 hours but after that starts tripping and goes on off. i checked all wires and connections.

Amp is probably over heating. Make sure the ohm load of speaker is good for that amp. This amp is not really built to handle a bridged 2 ohm load. Make sure ground wire is clean and tight to the body chassis.

I’m happy to help further over the phone at

May 18, 2012 | Sony Xplod XM-ZR704 700W 4/3/2-Channel Car...

1 Answer

I have a jl 1000/1 and a pioneer 600/4 and i have noise from the motor i cheked the ground replaced the 4 gauge still the same

the noise is from the alternater i believe. you just need to buy a noise filter and install it. i believe this problem is from power supply for your amp going straight to the battery. is that helpful?

Dec 15, 2010 | Jl Audio 1000/1 Car Audio Amplifier

1 Answer

The amplifier will turn on and give out put for limited time then it turns off and the red led comes on. ive rewired it twice now and the grounds are all good

Your over heating check and see if you can put in cooler spot also make sure u are getting good voltage through wires use a volt meter on pos and neg connectors at amp while radio is down and then when it is 3/4 volume should not drop more than.75 if is then go with bigger wires also if that does not work and amp is hot to touch check on installing fans

Aug 28, 2010 | Boston Acoustics GT-24 Car Amp

2 Answers

Front right speaker got wet, started cutting out. at the same time the rear right speaker started cutting. switched the rear speakers to opposite channels and this caused the right to work and left to cut....

the speaker getting wet will short it out. Shorting the output on any amp will ruin it. there is a right and left chanel with 2 outputs. Right chanel is damaged.

Sep 30, 2009 | Boston Acoustics GT-42 Car Audio Amplifier

1 Answer

I have 2 6x9 speakers up front 4 6 1/2 3-ways

Hello rjmiller4039,

Although amps with 5 channels are pretty rare, you can get one. Alpine, Boston Acoustics, Infinity, JL audio, MTX, and Polk all have 5-channels ranging in price from around $350 up to around $1,000. The Alpine PDX-5 will output 75X4 watts RMS for the front and rear stereo channels and 300 watts to the mono sub channel. It is priced at $599.99 at Crutchfield.

Hope this helps.

Sep 18, 2009 | Jl Audio 500/1 Car Audio Amplifier

1 Answer

Jl audio 1000/1 low voltage -keeps shutting off at high volume

You should definitely upgrade the power wire to the sub amp to 4 gauge -absolutely your choking your amp its starving for current-poor thing is starving !!!!!!!

Apr 16, 2009 | Jl Audio 1000/1 Car Audio Amplifier

2 Answers

How do I know what speakers fit my car? I have a 2007 saab 9-3 convert I don't know the size of my front and back speakers. I keep hearing various sizes 6.5 for the fronts and 5.25 for the back, I've also...

The very easiest way to check is to click this link to go to the "Outfit My Car" section of They will tell you exactly what size speakers the car came with.

Mar 15, 2008 | Car Audio & Video

2 Answers

System not playing

Sounds like the output transistors on the amp are blown. Were you slammin when it stopped or how did you find out it stopped working. It could be the sub failed then caused the ap to go which is why you get a little something from the JL.

Feb 11, 2008 | Car Audio & Video

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