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Fade Control of Alpine 9813 does not work properly

Hi

The fade control of my head units (ALPINE 9813) does not work properly. Sometimes when I fade all to Rear speakers, I still heard the Front speakers sounds. But when I fade all to Front, the rear speakers is completely quieted. The problem cannot be reproduced every time I try to fade; it is inconsistent.

The installation of both head units, amplifier and speakers has been done by the pros. I am not doing this myself.

So I suspect it could result from the fact that both head units and amplifier have been kept in my garage for 6 months after since I sold my car.

Here is the details of my system

Head units: ALPINE 9813
Amp: ARC 4050CXL 4-CH 50W RMS
Speaker: DLS UP6i
Amp: ARC FD600.1 1-CH
Sub: DLS RW10

Thanks for all advices.

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

Benimur
  • 6966 Answers

SOURCE: Fade F to R not working on Sony CDXF7000

Hi, To my knowledge, this head unit (Sony CDXF7000) uses individual 52 watts amplifier (X 4) whose output to the speakers require that none of the speaker wires be grounded or crossed/shorted. Please check the speaker wiring with the use of an ohmmeter (or a multi tester) with all the speakers temporarily disconnected. Verify that none of the 8 wires reads 0 ohms to body/chassis ground or to any of the other wires. As you have checked the wires area: front left > + red & - white/black stripe; front right> + gray & - gray/black stripe; rear left > + green & - green/black stripe; rear right > + purple & - purple/black stripe. Rewire should it be necessary. If the wiring fully checks out, it may be that you have a fader component failure inside the unit (though honestly rare). You can also check if there is no bridging modifications done; converting your 4 amp-4 speakers original design to a bridged 4X52=2X100watt amp to 4 speakers paralleled to 2. Another area you can check/try is by varying the DSO settings - 1,2,3,off. Hope this be of some help/idea. Post back should you need additional information. Good luck and kind regards.

Posted on Sep 30, 2007

  • 1 Answer

SOURCE: Rear Speakers dont work -Audi 2004 A6 sline Symphony II

you may have a loose wire somewhere or the wires comming from the headunit could be broke or damaged

Posted on Mar 04, 2008

  • 3 Answers

SOURCE: weak rear left amp output?

hey whats up bud i got an ALPINE V-POWER MRP-M350 these amps are great go to a walmart od any music shop buy a set of R.C.A cables that plug into your amp than that Ys off to a single connection its a male cable that run a set from the back of your cd player heres the trick ONLY PLUG YOUR BLACK COLORED RCA INTO HEAD UNIT MAKE SURE YOU RAP THE RED ONE WITH TAPE OR GET A RUBBER CAP TO PUT OVER IT SO YOU DONT GET ANY STATIC FREQUENCIES COMING OUT OF THE RED ONE THAN RUN THAT SET TO YOUR AMPLIFIER AND AGAIN ONLY TIE INTO THE LEFT CHANNEL OF YOUR AMPLIFIER.... Hope you know wnat i mean by that Y adapter ther is 2 prongs that tie into amplifier than it splits into 1 were your rca cables will plug into just that one thats how you bridge these confusing amps.... TRUST ME BOTH SUBS WILL SLAM HARD I RUN 2 JL AUDIO OFF OF MINE NO PROBLEM.... WRITE BACK TO ME IF YOU HAVE ANY PROBLEMS OR WHEN YOU GET IT HOOKED UP MY EMAIL ADDRESS IS gordo8785@yahoo.com hope to hear from you soon...

Posted on Jan 10, 2009

  • 651 Answers

SOURCE: Car Audio Fade

sounds like you got a bad stereo. it happens. i've i had the same thing happen, but the volume went up instead of down. check all the wires and make SURE they are all hooked up right.

Posted on Jan 10, 2009

blueextc3221
  • 15935 Answers

SOURCE: 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!!

Posted on Jan 10, 2009

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