Question about Fusion FEW12PK Car Subwoofer
On the back of your head unit you should have RCA inputs which are Red and White. most new stereos come with them standard. if you dont have em then you might have to take it to an car audio store and they might have to rig the line diff.
Posted on May 20, 2009
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Posted on Jan 02, 2017
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It's likely that the amp is defective but you should check the shield ground of the RCA signal cables before sending the amp off for repair.
Disconnect the RCA cables from the amp.
With your multimeter set to ohms, measure the resistance from the outer shield of the RCA cable to chassis ground. If it's more than a few ohms, that could be causing your problem.
If this is higher than a few ohms, short the meter's leads together to make sure the meter will go down to 0 ohms.
To check the shield ground of the head unit (assuming that the head unit is driving the amp directly), disconnect the RCA cables from the head unit and measure the resistance from the RCA output shield to the case of the head unit. It should essentially read 0 ohms.
Oct 21, 2007 | Cerwin Vega XL 600.1 Car Audio Amplifier
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