I have a Kenwood Kac-1023 amp and need HELP...

[BKLYNNY1]

I have a Kac-1023 amp that I currently have on my two 10in L7 kickers and love it had it many years and just yesterday it started blowing fuses on amp. Notice it happened when I hit a large pot hole. The amp has four sets of 20 amp fuses the two closer to upper corner blow as soon as I replace them... I did disconnect the speaker wires but not the rca jacks as someone here recommended to do so ...Gonna try to fix this amp hope it's a easy and not a costly fix...
What my sound system includes is a CAP Second audio battery box with two L7's....

[Perry Babin]

If the fuse blows with no remote voltage applied and the problem began when you hit a bump, you should begin by removing the cover an looking for evidence of damage. I've seen broken legs on the rectifiers in these amps. If a gate leg on an FET has broken, it could cause this sort of problem. It's also possible that there's a tiny strand of wire that's fallen across two points.

[BKLYNNY1]

Originally Posted by Perry Babin

If the fuse blows with no remote voltage applied and the problem began when you hit a bump, you should begin by removing the cover an looking for evidence of damage. I've seen broken legs on the rectifiers in these amps. If a gate leg on an FET has broken, it could cause this sort of problem. It's also possible that there's a tiny strand of wire that's fallen across two points.

Thanks for the responce all the help is greatly appreciated. Another question I have is. I am using the amp for bass only which I'm using the LOWPASS FILTER setting on bridges/mono position where should my frequency responce should be set at. Also where should my input sensitivity level be at?
Thanks
Joe

[Perry Babin]

The gain setting depends on too many variables. A good starting point for the low pass crossover is 90Hz. You'll have to adjust it to suit your listening preferences.

[BKLYNNY1]

Originally Posted by Perry Babin

The gain setting depends on too many variables. A good starting point for the low pass crossover is 90Hz. You'll have to adjust it to suit your listening preferences.

Sorry for newbie questions but the lower the Hz the deeper the bass?

[BKLYNNY1]

Confirmed! Still blowes fuses with RCA & Speakers detached..Gonna take to a shop after work fingers crossed!
Joe

[BKLYNNY1]

Update.. Local shop told me it was 6 transistors wondering what in the world caused this to happen..

[1moreamp]

Sounds like a blown power supply issue, and this could be caused by many different reasons. Old age, being over-driven, bad 12 volts and or grounding etc... too many to guess at without it being open on my bench and a inspection of your ride...

[BKLYNNY1]

Originally Posted by 1moreamp

Sounds like a blown power supply issue, and this could be caused by many different reasons. Old age, being over-driven, bad 12 volts and or grounding etc... too many to guess at without it being open on my bench and a inspection of your ride...

Have two L7 10inch Kickers made up in a custom box..I have a extra audio battery in rear with a 2 Farad capacitor all connections are correct! My cables consist of 2 gauge + from main battery to rear with a 200amp fuse inline, And 4 gauge - to chassis. From rear battery to cap with 4 gauge wire to amp a simple set up. All was fine till I rode over some really BAD pot holes.
Joe

[1moreamp]

perhaps the sudden shock of that event caused something to short out that normally would be fine and good. I have two KAC-1021's here and they are fairly solidly built inside, as with most OS kenwood gear, so unless i see the amp and the car I am still guessing at best here and so will most every body else. Just too many variables to hang the smoking gun on. Wish I could help more....