Hello, I bought a new deck and speakers from crutchfield. I installed it in a 1982 Buick Electra Limited Diesel. I am using a DXZ545MP HU. I am using Kenwood KFC-6909 6"x9" 4-way Speakers in the back, and Kenwood KFC-4675C 4"x6" 2-way Speakers in the front. The problem I am having is that the HU only lasts about 30 mins before I lose sound. The HU still powers up but the sound is gone. I have lost 2 HU's to this problem so far. I used the wiring harness that was sent from crutchfield, double checked all the wires and they seem to all be correct. I opted to soldier connections instead of using cheap crimp on connections. What I need help with is how to troubleshoot this problems, the tech support at crutchfield is crap. I am going to be checking the ohm's of the news speakers, securing a better ground, and adding an inline fuses to see if I can blow a fuse instead of the deck. The HU usually plays fine at really low volume, but when ever I turn it up it seems to blow/short when I play it at higher lvl's. Another thing that is bugging me is that I get some distortion even at low lvl's. One song will sound fine no distortion, the next song will have tunz of distortion. The problem that bugs me is my 20+ year old factory system sounded better and was louder then the aftermarket setup I have. I need some help on things I can check to help clear up this problem. Thanks HAPPY
Replies (1)
swez on 03/2/2004 05:42:45
You may want to start digging into the speaker harness and measure the ohms load to each speaker here first. Should get a reading of close to 4 ohms on each. If you get a figure that is much lower than 4 ohms... Ie: <2 ohms, may have a partial or full short in one or more speakers.
On the HU, make sure you have a good body ground and while at it, measure the voltage the HU is actually getting at the harness. It should range between 14.5 to 12.5 volts. (engine on/off. Fuse the HU power wire at 10-15A. Better to blow a fuse than fry a HU.
Swez
Replies (1)
swez on 03/2/2004 05:42:45
You may want to start digging into the speaker harness and measure the ohms load to each speaker here first. Should get a reading of close to 4 ohms on each. If you get a figure that is much lower than 4 ohms... Ie: <2 ohms, may have a partial or full short in one or more speakers.
On the HU, make sure you have a good body ground and while at it, measure the voltage the HU is actually getting at the harness. It should range between 14.5 to 12.5 volts. (engine on/off. Fuse the HU power wire at 10-15A. Better to blow a fuse than fry a HU.
Swez
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