Question about Kenwood KAC-7204 Car Audio Amplifier

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My amp has power but no sound will come out of my subs i've checked the groundwire, powerwire and remote wire and all of them are fine

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Hi. I just had a thought that you should check your RCA wires coming from your radio to your amp. Test with a different pair and let me know. Hope this helps

Posted on May 24, 2011

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I have a mono block kenwood amp and a type r sub their is no sound to my sub but there is power to the amp just no sound


Check your subs impedance to establish speaker is working ,Check crutch field advisors website for sub box construction and detailed wiring instructions.

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How to fix blown sub (replace fuses etc)...? stop protective light illuminitating?


The first thing to try is to disconnect the sub and all speakers from the amp's output block. The only things that you need connected to the amp are the 12V power, the ground wire, and the remote wire to turn it on. If the protection light comes on with only these three wires connected - your amp has been damaged internally and will either need to be repaired or replaced.

Jul 27, 2013 | Car Audio & Video

1 Answer

Kicker dx 500.1 keeps ruining my subs


if your sub isnt blown, i'd follow your own idea and look for a bad wiring connections, also what kind of head unit do u have? check the settings on ur head unit to see if there is a seperate setting for your amp/subs if it does have one, make sure it is set properly

if it does not have a setting like above, check the rca cable from the radio to tthe amp, and make sure that the rca cable is plugged in to " input instead of the output

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1 Answer

Wiring/sub-woofer not putting out!!


The remote wire from your head unit should be blue and there should be a wire that connects that to your amp. Make sure it is hooked up. Also, if you are using the high in put wiring up above, it shouldn't be mixed with your RCA. That wiring diagram is not needed for the subs. You should also check the gauge on you power wire that runs from the battery to the amp. If it is 4 or less it should be good if it is Copper Clad aluminum (CCA) it will put out power similar to 8 gauge copper wire. Most of the time the problem with the low output of subs is the amp wiring kit. You could have great subs and a great amp, but if the wire isn't any good it can sound like ****. Just FYI in case you weren't familiar with any of that. Always try to get pure copper wire when it comes to the power cable. You can google information about it. If you're wiring there is fine. Again, check the remote wires. Also check to see you have your amp levels turned up as well. As for the violet and violet/white. Those are referring to you speakers in your vehicle. Not your subs.

Oct 02, 2012 | Car Audio & Video

2 Answers

XA10002 dual channell amp pushing a single 12 inch JL Audio sub and continues to go into protection mode. All setting are turned to the lowest possible and remote wire, power wire, and ground wire are all...


Make sure you are wiring the sub to the correct ohm's. Some amps have a protective feature that will send them into protect mode if they do not since the right ohm load. If the sub is wired correctly double check your ground wire on the amplifier, and if that if also fine then your amp will need serviced.

May 31, 2011 | xXx XA10002 Car Amp

3 Answers

I have this hooked up and works fine with the key on, but when i start the car, sub light, amp and sub dont come on.


You have connected it to the wrong power wire - one that is only active in service mode - first key position.
You should draw a wire directly from the battery (don't forget to add a 40 amps fuse on the wire) to the amps. If you don't want them constantly operational (you will have to manually shut them down) install a relay on the wire with the command coming from a wire from the instrument key position - second position of the key. Use a voltmeter to identify the wires.

Oct 15, 2010 | Rockford Fosgate Power 351M Car Audio...

1 Answer

NEW AMP PROBELMS JL


check the fuses in the amp if it has any then check your ground make your have a good stable ground and if thats not i dont know if you have a fuse that is tied in with the remote wire that goes to your amp in the back of the radio if so check it as well

Oct 29, 2009 | Jl Audio HD750/1 Car Amp

1 Answer

LED LIGHTS DONT TURN ON


3 Options.
Check your powerwire, and make sure you fuse in your power wire is good and that your getting power.

Make sure you have a good ground. A bad ground will not allow your amp to turn on

Your remote wire that runs from you stereo. Make sure it's connected from you H/U to your amp. If you forget your remote wire(Blue), your amp will not turn on.

Aug 31, 2009 | American Audio VLP300 Power Amplifier Car...

1 Answer

Amp powers on but sub does not come on


I would double-check your RCA's on the amplifier. You should hear a thud if you unplug them. If not they are either not hooked up or defective.

Feb 07, 2009 | Sony XM-2150GSX Car Audio Amplifier

1 Answer

Cd player plays, but no sound comes out of speakers.


first off the amp gets power straight from the battery. the amp is used to power the subs. the subs are suppose to be connected to the amp only( never the speakers).

for the second part you mostlikely killed the wires. you should get some one to look at it and check the wires. thee speakers might need to be re-wired

Jan 31, 2009 | Kenwood KDC-MP238 CD Player

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