This is a new install of the JVC ax3500 amplifier, the woofer has been tested on another amp and is working, the woofer doesnt produce any sound. It does however make small vibrations when a lot of bass is being played. I tried changing the RCA cables to different positions as well as turning the HPF and LPF switches on and off and one on one off, all different possible combinations.
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You may have a woofer with an impedance that is not correct for your amplifier, or possibly a damaged woofer. Try hooking up a different sub in your car without moving your amp, see if it does the same thing. If it does your amp has an internal issue. If it doesn't you know it's the sub.
You can not connect the subwoofer directly to your head unit. You need an amplifier installed to play the sub woofer. Asuming that there is an amplifier installed then:
If your head unit has an RCA output on the rear, connect that to the LINE IN of your amplifier.
Also there should be a Blue&White cable at the rear of the head unit.(amplifier remote) That should be connected the the remote terminal on the amplifier. (this will turn the amp on and off when the head unit turns on or off)
Hope this helps.
i am having the same problem with mine was told that the amp is not pushen to the sub and to test it with another speaker if it does the same thing with the other speaker then it is the amp if it dont and the second speaker works then the sub is shorten out the amp so i wil have to replace the sub ...eather way if you bought this new they are gonna charge me 70 dollars to fix it they being alpine. I rather pay 70 then another 400 dollars good luck to you and wish me luck gonna hook it up to another speaker tonight
If this is a straight power amp it might require a pre amp that inputs decoded 5.1 signal other wise the sub may not be receiving an input signal. make sure there is nothing wrong with the sub by hooking it to one of the other channels FL or FR if this works then it got to be a problem with no signal getting to the sub woofer.
When you say the 40 Amp fuse blew. Was it your mains battery fuse or was it the fuse on the amplifier? If it was the fuse on the amplifier then you may have hurt the amplifier. The Kenwood KAC-8101D is a 1000 Watt monoblock amplifier. Therefore if you say that 1 of your woofers is not playing, then it is almost certainly blown if you are sure it is connected correctly. Try disconnecting it and only running the woofer that tries to play. If this woofer is still working correctly, you will notice a drastic drop if the sound of your bass. The reason for this is because you have changed the impedance load on your amplifier due to the fact that the other woofer is not working. Have your working woofer checked and replace the faulty woofer then you should be banging again.