Question about Kenwood KAC-7203 Car Amp
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Posted on Jan 02, 2017
i had the same problem ! that amp is underated!
it should have 2 / 40 amp fuses i had to direct wire the fuse!
not a smart thing to do but it never shut off again and i havent
had any problems at all i put a 60 amp fuse at battery!
melted 1 wire that was two small ! its banging 2 / 12inch solo barics and sounds great hits deep. again not smart BUT it works.
Posted on Dec 01, 2007
SOURCE: AMp keeps blowing fuses
When any amp blows fuses, this indicates that something is drawing too much current. The most common cause are components in the output stage and driver stages that have become defective.
On the amp that is blowing the fuse with the volume being turned up, this means that the output stage is partially working. The short or over-draw of current must be in the output stage, or what is loading it. It is possible in this case that a crossover in a speaker unit is defective, and is drawing too much current. I have seen this with especially sub-woofer crossovers, and the driver itself. Subs pull a lot of current because of the amount of drive power required to have very strong bass sounds. Other than that, this still does not rule out the possibility of the problem being defective components in the amplifier.
Posted on Apr 25, 2008
either bad ohm load or over heat if the ohs on the speaker wires to the amp are lower than specified use in the manual it will act funny cause it is pusing harder than its meant to and if it gets too hot either bad location or bad amp you can try turning the gain down a little until the amp stays on constantly at high volume
Posted on May 18, 2009
Here are the troubleshooting steps for fuses blowing.
1) Remove all wiring except ground, power and remote and see if the amp powers up without blowing the fuses. If it does, the problem is in the input cables or speaker wiring.
2) The use of loudspeaker impedances below the recommended minimums will cause the amp to draw excessive current - check.
3) A shorted or grounded RCA cable may cause the fuses to blow - check.
4) If an amplifier fuse blows continually, with only +12 volt, ground and remote leads connected, the amplifier is probably defective, most likely shorted output MOSFET's. In this case the amp needs professional repair or replacement.
Hope this helps.
Posted on Sep 20, 2009
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