Question about Cadence Z8000 Car Audio Amplifier
Whenever i turn my car on and the stereo is at a low volume the sub works fine but as soon as i turn the stereo up even a little bit the sub completely cuts out. im guessing its something in the amp but i have no idea what!
thanks for the help!!
With your multimeter set to DC volts, the black meter lead on the ground terminal of the amp (not on the point where the ground wire connected to the vehicle) and the head unit on (so the amp will have remote voltage applied), touch the red lead alternately to the B+ and remote terminals of the amp. If the voltage is below ~11 volts, you need to check the wiring feeding whichever line is too low.
If the voltage remains near or above 12v, the sub may be damaged. You'll need to measure the resistanace of the voice coil. It shouldn't read less than ~85% of the rated impedance.
Posted on Oct 26, 2008
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