Question about Kenwood KDC-128 CD Player

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No sound from speakers

I just replaced the rear speakers on my car, and now when I turn up the volume past the "20" level, all the speakers (front ones too) turn off. If I turn off the car and start it back up, the speakers will work again, but will again shut off inexpicably when I hit the magic "20" level. Anyone know what could be causing this?

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Re: No sound from speakers

Check the value of the fuse for the power feed, it could be that the fuse is to low. The unit uses 10A min. I suggest a 25A fuse. here's a manual Luck

Posted on May 04, 2007

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try the fade button, if its a 4 speaker system you have balance left and right, and fade front and rear.

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Go to the stereo fader and balance the volume in each speakers. You can see there L for left speaker R for right speaker and F for front speaker and then R for rear speaker. Put them all in zero to have equal sounds volume.

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Clarion DRB2475 mutes when I turn up the volume

Sound like one of your car speakers is faulty, try using the fader and see if it still happens when all sound is to the front or rear and try left and right.

Nov 16, 2009 | Clarion DRB2475

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Speakers Crack at mid to high volume (anything over level 20)

make sure speakers are connected properly to individual speaker outputs from radio .Also make sure speaker cables going to speakers are not pinched or shorted anywhere

Jul 30, 2009 | Jensen CD400M CD Player

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Rear Speakers

Hello kaykayscott1,

Here's a link to the manual.

First make sure that the green green/black and purple purple/black pairs of wires are properly connected to operate the rear speakers.

You can check and adjust the "fader" and "rear volume" settings from the front panel. Go into settings by pressing the CONTROL knob. Then press CONTROL repeatedly until you get to the setting you want to check or adjust. When the display reads "R-VOLUME", turn the CONTROL knob from 0-35. Press CONTROL repeatedly again until the display reads "FADER" and turn the CONTROL knob from Rear 15 - Front 15 until you get the setting you want. Exit audio control by pressing any button.

Hope this helps.

Jul 21, 2009 | Kenwood KDC-MP438U Car CD/ MP3 Player

2 Answers

Replaced rear factory speakers now have low volume

Factory speakers usually have low resistance ( 2 ohm) When replacing speakers with aftermarket, most aftermarket speakers will be 4 ohm. If you want the same sound you may have to buy some resistors to put on the speakers (across the + and -). By putting a 4 ohm resistor across the connectors will now make the speaker 2 ohms which in effect will raise the volume. Depending in what vehicle you replaced the speakers the resistance will vary.

May 18, 2009 | Sony CDX-GT500 CD Player

1 Answer

Rear speakers low volume

Double check your settings on your radio. Mostly your Fade levels. If that is not the cause you may a chip going out in the head unit. The chip is fairly simple to purchase, remove and replace depending on your soldering skills. Let me know if the fade levels correct it. If it doesn't then I will help you find the replacement chip to order and replace.

Mar 17, 2009 | Panasonic CQ-C5301U CD Player

1 Answer

Volume fade

Check to be sure there are no speaker wires touching ground, and that the wires are connected in phase to the head unit.
Front Speakers 5 1/4" Doors Left Front (+) Green Left Front (-) Black/White Right Front (+) White/Red Right Front (-) Black/White Rear Speakers 6" x 9" Rear Deck Left Rear (+) Pink/Red Left Rear (-) Pink/Blue Right Rear (+) Pink/Light Blue Right Rear (-) Green/Red

The symptoms you are relaying definately sound like an internal amplifier problem. It is fading in and out for a reason - usually due to heat.

Have you had the radio bench tested (seperate from the car) to eliminate the car as being the culprit?

Since the radio was run with damaged speakers originally, the output or amplifier power supply on the amplifier may be bad.

As an alternative to repairing, I would suggest investing in a small 2 channel amplifier to power the speakers.

The radios claim 50W per channel, but in reality give 12-15W RMS power.

A dedicated amplifier with built in crossovers and gain adjustments will prolong the life of your speakers and add to the tonal qualities of your new speakers. Instead of turning up the volume on the head Unit, and sending out a distorted signal that will blow your speakers, an amplifier will give more CLEAN power to them, so it will be louder at a lower volume setting.

This will bypass the internal amplifier on the radio, and send a Low Level signal ONLY thru a set of RCA cables.

Good Luck!!

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1 Answer

Unti shuts off at high volumes

You might have a damaged speaker which shorts out at high volume. Disconnect one speaker at a time and crank it to find the one that causes the problem.

Sep 09, 2007 | Clarion M255

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