Well i went to hook up my jensen ka-3 2 channel amp and i connected up the ground then right as i touched the 12v to the amp it sparked like there was a short but i hooked up a different amp and it worked fine id like to know whats wrong.
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Hello Brian, I have done a search for the Jensen KA-4400 Amplifier manual, without any luck. Sorry. However the following might be useful for you to continue the search: (1) Jensen Customer Support: 800-732-6866 (2) Go to: http://caraudio.manualsonline.com/manuals/mfg/jensen/jensen_car_amplifier_product_list.html (Be careful to copy ALL of the URL address). Then click on "Ask the membership for help locating your Jensen Car Amplifier manual"at the bottom of the screen. Then fill in the form. Good luck.
Hi the RMT is short for remote and is connected to a 12v feed taken from the remote output from the cd player, it provides the 12v needed to turn the amplifier on when required & turns it off when the player is turned off. Do not connect this to a permanent 12v feed as the amp. will be on all the time & you will have a flat battery every morning!
The Jensen A222Hx is an "old school" amp and the channels are probably not bridgeable. I'd recommend posting and/or researching your question on one of the "Car Audio" forums. Many of the members are old school trained and may even be able to locate a manual for Jensen's.
First remove the primary fuse on the 12V power wire.
Run a temporary wire from the NEGATIVE terminal of the battery to where the amp is located. You do not need to make a permanent connection, just wrap the wire around the terminal enough to get a good connection. Use a multimeter set to the lowest OHMS scale and test between your proposed ground connection and the negative battery terminal. A good ground will indicate near "zero" (or very near zero). If you don't get a "zero" reading, try to find a screw or bolt going into the metal of the vehicle. Again, the meter will read "zero" when you have located a good ground. Reattach the amp ground terminal to the good ground, remove the temporary test wire, reinstall the primary fuse and test the amp. If it was just the ground, you've fixed it.
I'd be inclined to check to make sure there isn't a short circuit somewhere in the output lines. Maybe a wire is crushed against the car's body or bare wires touching or badly fitted RCA plugs. All of these things could activate the protection circuit. If you have a multimeter it would make life easier but don't forget your speakers will show up as 4 ohms so that's not a short.