Question about Kicker (ZX350.4) Car Audio Amplifier

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ONLY ONE SPEAKER PLAYS AND AMP TURN TO PROTECT IF VOLUME HIT 3/4

I have a kicker zx350.4 that is pushing two 6.5 pioneers and two 6x9 kenwoods. I have had this setup for over a year. The other day my highs started fading in and out. I figured it was my xmradio but the bass stayed strong, and when I turned the volume down the highs came on. I turn the radio off and the car for about three hours. When I started the car again the speakers were oding the same thing. I messed with the fade on the Panisonic head unit and I found that only one speaker was working.(driver side back) The next day I had the volume low and all the speakers came on but when I turned the vol. up they cut out and went back to just the one.I have checked the wiring and it all seems good form front to back. I am not sure what to do and I don't have the cash to buy a new one. HELP ME

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  • ramox Mar 02, 2009

    I dissconnected all the wires to the speakers except the one that is working. I did the test on each channel and the speaker worked on all of them. I then used an old speaker and did the same test with the same results. I took out the 6x9 that wasn't working and could see a wire going to the tweeter was broke and the speaker is blown. I then took out the front passenger speaker and its blown but when I straight lined it to the amp it played. I belive it is a wiring issue. I re set the gain for the one speaker and it worked at maximum volume. I went home and the spaker started cutting out. After it cut out it wasn't as lound as before. It has cut out and got softer over the weekend. Now I turn it to 37 which is almost max(40 max) and the seaker sounds like it on 15 but the bass sounds perfect. Can it be the wiring? Could it be may HU's amp? Or my kicker amp itself? I will use a voltage tester on the amp like you said.

  • Perry Babin May 11, 2010

    Move all of the switches and controls on the amp to see if any affect the sound (going on/off).

    You may also have another problem that's causing the amp to go into protect.

    If you have another speaker (that you know is in good working order) that you can use for testing, disconnect all speaker wires from the amp and connect the test speaker to one channel at a time to see if the problem remains. If there are never any problems when driving the test speaker alone (no matter which channel it's connected to), suspect the wiring.

    You should also check the voltage at the B+, remote and ground terminals on the amp to confirm that the voltage is at or above ~11.5v.




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SOURCE: Prot. light at High vol. (forget Bass CD)

You may have the speakers wired for the wrong impedance.

How many ohms per voice coil?

How many voice coils per speaker?

If the speakers are DVC, are the coils of each speaker wired in series or parallel?

Are the speakers bridged on the amp or one per channel?

Posted on Jul 07, 2008

GregV24CHOPP
  • 11 Answers

SOURCE: ZX700.5 cutting out at 60% volume

im pretty suree you don't have enough watts to keep the speakers going and that's why it cuts off on you when you turn it up =(

Posted on May 13, 2009

  • 30 Answers

SOURCE: speakers cut off when bass goes up

probably the amp going to safe or protect mode judging by the fact that you have 3 subs wired to it i would say it is not 1 ohm stable try disconnecting 1 sub and see if it still happens this will be running a 2 ohm load rather than 1 if it stops happening then you need to figure out a better wiring configuration that will work with your amp.

Posted on Jul 03, 2009

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Speakers cutting in and out at high volume


The amp is going into protect on the two channels powering the speakers. Turn down the gain on those two channels. You also may want to consider crossing over the speakers a little higher than they are now.

The rating on those speakers are way too high. 6.5's and 6x9's will take 50-100 clean watts tops before they start to break up.

The best solution to get it perfect is....unplug the subs. Turn the gain on the speaker channels all the way down. Then turn up the deck 80% as high as it will go. Play a song. Then increase the gain on the amp until the speakers are as load as they go without distortion. Shut off the car, replugg in the subs and do the same thing. Gain on sub channels all the way down, deck then to 80%, find a bass heavy song, then turn gain up until subs become distorted. If you do this procedure your speakers and subs will be "gain matched" to the proper levels.

Good Luck

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