Question about Kenwood KAC-5204 350 Watt Max Power Stereo Amplifier with Variable LPF

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No power to sub.. redlight flashing on top of amp

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Put a meter across the speaker without disconnected and measure the impedance, it should show you the stated rating say like 4 ohms or 30 ohms. if it shows nothing then you have blown it up. If it shows you a dead short then its still blown up and probably burnt out and is shorting. Try very gently pushing in and out the cone with both hands 1 on each side if it is stiff then you have knocked it of center or burnt it out. if you get a reading with the meter and the cone has not frozen then try another speaker on the amp. if this fails they the sub on another amp. if this fails look for a reset button on the amp. you could try giving the amp a new signal that you know works finally if this fails then it looks like you have taken both of them out

Posted on Apr 09, 2011

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Just hooked up mtx 500d mono amp and 12 inch sub worked for a 1/2 hour then sub quite and led on top of amp just flashes.


either ur ohm load is way off ur pos n neg might be touchin or more than likely u blew u sub is it scratchy when u push in the middle of the cone ? does it push in at all?

May 14, 2010 | Car Audio & Video

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Just hooked up mtx 500d mono amp and 12 inch sub worked for a 1/2 hour then sub quite and led on top of amp just flashes.


Your amp went in to power protect. You must adjust the settings on amp. This is usually very time consuming to get it right. Good Luck

Mar 24, 2010 | Car Audio & Video

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Um the power light will flash then the protl. light will flash its all hooked up right but weird sounds coming out my subs.


Disconnect subs from output of amplifier and then turn on car and radio. Does amp stay on or go into protect? If it stays on then there is something wrong with the subs or how they are wired (series, parallel ) to the box and amp. If it still goes into protect then something internal with amp.

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How do i connect my pv2600amp to my peavey subs and top speakers, i have the leads but what do i do?


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From Subs then to Main spkrs. Make sure power amp is set in stereo mode using this way.

Alternative: You will need at least a 2-way stereo crossover unit inline after mixer and before power amps if the subs don't have a built in passive crossover. Most of them do have passive crossovers in the subs these days. Then separate amps or one channel would drive the subs and the other the main speakers. True stereo would require at least a 2 way crossover and two stereo power amps if hooking them up this way.

There is another option as is common with many sub setups. Send the signal to the mains using L/R outputs from mixer and a separate Mono output to the subs only. Putting only bass/kick and low frequency outputs in this send would help too.

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??Confused and angry!


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.

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