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I bought and hooked up a used jensen 500 watt amp but could only get the logo to light up and not the green power light. what does this mean?

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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Shuttle83
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SOURCE: jl 500/1 no sound, green light

This is an indication that the MOSFETs are ok but the driver stages may have a problem. Get a schematic find the pre-amp stages and test the voltages levels there as compared to the schematic. I do believe that you will find the problem in the pre-driver pre-amp atages.

Posted on Sep 06, 2007

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Cerfer39
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SOURCE: 600 watt 4 channel bridgeable mosfet power supply jensen amp

Swap the wires from one speaker to the other to see if it is the speaker or the Amp/wires. 

Posted on Oct 23, 2007

Hazardsneon
  • 100 Answers

SOURCE: 2.0 Farad Capacitor

The answer is yes, any amount of amplifiers can be hooked up to a cap. Obviously the more amps you hook up to it the less you are going to nodice the difference with the same amout of farads. The only thing that I am worried about is the wiring from your battery to your cap. As long as you have a decent gauge wire running back you should have no problem. And for this instance I would recommend 0 guage, you might be able to get away with 4 but I would highly recommend 0. Over all I would recommend 0 guage on all installs unless you are going small and don't plan on upgrading. I hope I could help
-Andrew Hawkins

Posted on Apr 24, 2008

JULIANFIX
  • 975 Answers

SOURCE: A300HLX Amp + 600 Watt JL Audio Sub

Ill go for a better GROUND , sounds like its not grounded properly and thats why the RED LIGHT . DO A RE CHECK on the installation . hope this helps

Posted on Apr 29, 2008

  • 132 Answers

SOURCE: 400 watt jensen amp not hitting.

Not to be mean but jensens have never hit as far as i know

Posted on Jan 30, 2009

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1 Answer

I have to hook up 4 amps in my car. 4 channel 700 watt ken wood, 2 channel 800 watt Sony, 4 channel 740 watt Jensen ,and a 2 channel Rockford fosgate. Which is best way to hook them up so I'm not ki


Pace posted on Saturday, March 05, 2005 - 01:08 GMT Your subs are dual 4 ohm voice coils so if you want to bridge your 2 channel amplifier to your two subs then wire them parallel, meaning the + to + and - to - ( Do this to both subwoofers), Then run a wire from one positive and one negative on each sub and bring the two positives together and the two negatives together and hook both positives to the far positive connection on your amp and connect both negatives to the other negative on your amp,

This will create a 4 ohm load on your amp.

Although if it's a two channel and you have two subs it's usually pointless to bridge them because if you use one channel per subwoofer its going to be the same as if both subs were bridged. example) 800 watts x 1 bridged power of your amplifie (4 ohms) is the same power as 400 watts x 2 at 2 ohms.

Nov 26, 2012 | Computers & Internet

1 Answer

Can i use my jensen 340 mono amp with a 500 watt 15'' subwoofer


You can, but I wouldn't advise it. Won't sound that great, your probably going to overheat your amp. It may go into protect mode. You need a bigger amp.

Dec 13, 2011 | Jensen JXP340 Car Audio Amplifier

1 Answer

Need to know what order to hook up red,yellow,and black wire which to positive which to neg and what size inline fuse is needed for my mcd 5080


Red- power Yellow-Memory Black-Ground

Unless the yellow wire has a fuse built into it then....
Yellow- Power Red-Acc/Ign Black- Ground

If the fuse you are asking about is on the radio t s usually a 10 or 15 amp fuse but if you mean for the power wire for a amp then it depends on the power amount of the amp....look on the amp and find the sum of the fuses on the amp and use a inline fuse that is the next fuse size sum...
Ex. 2 40 watt fuses on the amp then 40+40=80 watts so you would want to get a 100 watt fuse. Also remember you can never go to big for your inline fuse with a amp

Aug 22, 2011 | Jensen Car Audio & Video

1 Answer

My Jl Audio 500/1, power light comes on but no power to subs


maybe it dont have enough to push it ,,did you try it before you buy it?

Mar 01, 2010 | Jl Audio 500/1 Car Audio Amplifier

1 Answer

I have an older model Jensen 500 watt 2 channel bridgeable amp. When i hook it up the red light(protect light) comes on and it will not work


REMOVE THE RCA INPUTS AND DISCONNECT THE SPEAKERS AND POWER THE AMPLIFIER UP WITH THIS NO INPUT, NO SPEAKER LOAD CONDITION. IF IT STILL GOES INTO PROTECTION AND YOU HAVE VERIFIED THAT THE POSITIVE AND ESPECIALLY THE GROUND CONNECTIONS, ALONG WITH THE REMOTE CONNECTIONS ARE 100%, THEN THE AMPLIFIER WILL NEED TO BE SERVICED. LET ME KNOW IF YOU NEED FURTHER ASSISTANCE.....V

Dec 01, 2009 | Jensen A300HLX Car Audio Amplifier

1 Answer

Its stuck on protected. I recieved the amp for my birthday in 2000. It protected it self 90 days later. I needed an amp righr then so I went and bought a 600 watt jensen. I took the old one out of the...


whats the ohm rating of amp probally 4 what is the ohm rating for sub how many subs are you running how do you have them hooked up parallel or series is your wiring to amp right

Jul 06, 2009 | Car Audio & Video

1 Answer

DON'T KNOW WHAT WIRING KIT TO USE FOR 400WATT 4 CHANNEL AMP


well i will let you know now that 400 watts running into two subs like that will never match. You will want to run only one sub or get a bigger amp. But for that amp a standard 6 gauge power wire will be sufficient to run it. The ground wire about 4 gauge is good.

Feb 23, 2009 | Jensen VM9510 Car DVD Player

1 Answer

400 watt jensen amp not hitting.


Not to be mean but jensens have never hit as far as i know

Jan 29, 2009 | Jensen LXA400 Car Audio Amplifier

1 Answer

A300HLX Amp + 600 Watt JL Audio Sub


Ill go for a better GROUND , sounds like its not grounded properly and thats why the RED LIGHT . DO A RE CHECK on the installation . hope this helps

Apr 29, 2008 | Jensen A300HLX Car Audio Amplifier

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