Question about Kenwood KDC-MP435U CD Player

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Amps wont stay on

I installed the cd player in my 99 dodge avenger and i have an amp running to a pair of 6 by 9s and a separate amp running to subs and when im listening to the radio my amps are fine and my speakers work but whenever i use a different option of playing my music such as a cd my amps turn off and act as if they dont get any power.

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Re: amps wont stay on

Try to look at the connection on the back of the cd player and make sure that the amp power wire is connected to the power wire on the wire harness on the back of the cd player and that should work but i only need one amp for a pair of 6by9s and subs try to bridge the speakers all to one amp that should cause it to sta on while in cd mode hope that helps

Posted on Nov 27, 2008

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I wont the speakers hooked to the cd player no the amp

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depending on how many channels the amp is, you may not be able to hook everything up to it.

usually you have a separate amp for subs. 4 channel amp for the speakers in the car, and a mono amp for the subs.

To hook them all up to the same amp you would need an amp with 5 channels. It wouldn't work out right.

If you have a mono amp its only for subs.

If you have a 2 channel you can either hook it up to the rear speakers or bridge them to mono to run the subs.

you need a channel per speaker basically.

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RCA Outs are very low power signal connectors. They would have a hard time running a pair of headphones.

What you need is a Power Amp that the RCA's plug into and your subs Connect to.
You need an Amp (Amplifier) that powers a similar number of Watts to what your Subs Capacity is. (ie; your subs have a ratting of 100W (Watts), then you need an amplifier with 100W per channel; that's a 200W amp for a two way (Speaker) amp, or a 400W rating for an amp with 4 channels (4 Speaker connectors)
You can run a lower power amp on your subs, and use ony a portion of your speakers capacity; but if you get an amp that supplies more wattage than your speakers capacity, then you'll blow your speakers, their performance will deteriorate slowly. eventually they will not be able to generate a clear reproduction, Speakers are irrepairable.

Sorry for the long explanation.
This is something you wan't to do right, the first time.


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Simple 2 minute fix.

Thanks for using FixYa - a FixYa rating is appreciated!!

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Some decks only give one pair of pre outs. Most 4 channel amps can use just a 2 channel input and feed the other 2 channels by the flip of an input selection switch. I recomend a 4 channel amp if you want to power front and rear speakers and be able to set the gains to blend properly, or you can run all 4 speakers at a 2 ohm stereo on 2 channels and run a sub on the remaining r channels. It just depends on how you want the setup to be nd to how much control you want. Let me know.

Larry T
Winona Lake, IN

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Use a hole saw to cut a 2 to 3 inch diameter hole in the side of the speaker box for a port to get a better punch from the sub.
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