Question about Boss Klash K780 Car Audio Amplifier

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Boss amp turns off sometimes

My boss klash k680 amp turns on but no sound comes on then i mshake it around and it works sometimes then sound goes away when its playing

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There must be some bad solder connections in the amp. You will need a soldering iron and some solder. Plus the skill to use them so you do not cause much more damage to the amp. It is very easy to bridge a solder joint to a close by solder joint and cause a short in the circuit and can be very danergous, even cause the amp to catch fire. If you bridge any solder joints and then power the amp on, you may very well destroy the amp beyond being able to repair it by anybody. So if you are not sure of how good you may be able to solder the board, please just take it to a service center and have them check it out for you. If it is just some broken solder connections they should be able to repair it fairly cheap. Most shops charge about $65 for this type of repair, but not all repair shjops are priced the same, so you would need to check it out first.

It is very common, for car audio especially, to get cracked or broken solder joints due to the nature of them. They get bounced around a bit even when installed properly. Every time you hit a bump in the road the amp gets a little jolt.

If your amp had anything else besides the bad connections, it would not play OK after shaking it.

If you need any further help let me know.

Posted on Feb 14, 2009

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