I have a Kenwood KAC728S amp. I have installed this amp in a couple of different cars I have had in the past. I tried installing it today however everytime I put juice to it I am blowing both of the 20 amp fuses installed in the amp (I also have a 40amp inline fuse that hasn't blown yet). I am using a new wire kit that I bought yesterday, 8ga power and ground. I have it grounded to the body. I am fairly confident the power wire that I installed today is not shorting on the body anywhere, although I have not scowered over every sq millimeter of it to be 100% positive. The amp is several years old, so my question is, could I have a bad amp? or am I missing something somewhere else? Is there a test that I can run with a volt/ohm meter to confirm that I have a bad amp?
Thanks in advance!
Try the amp with out any speakers connected to it. Then turn it off and connect the speakers, and turn it on. That will eliminate the speaker scenario.
Then try it without the rca cables.
Check your ground as well with a meter.
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Thanks for the quick reply. I didn't think to check without the speakers or RCA cables. I put in two new fuses and removed both the speaker cables and the patch cables and blew both the fuses again. I am not a pro with an ohm meter so let me explain the process I used to check the ground to make sure I am telling you an accurate reading. I used the 200 scale on my ohm meter and put the red lead to a bolt on my body and put the black lead to the 8ga ground cable that I was using to ground my amp and I am seeing a reading of 0.3 ohms. So after reading the post on grounding that's probably okay, right?
Thanks again.
I believe the amp is done, I find that bad grounds often just lead to amps not turning on or turning off, not blowing fuses.
Have it bench tested at a shop, they might charge you though.
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That's pretty much what I figured. Just needed confirmation from the experts. Thanks for the help.