Question about Alpine MRD-M605 Car Audio Amplifier

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When i turn up my radio sounds good but its not too loud so i go to crank it up little bit its like my amp shut"s my deck off like short???

3552 i hook jvc kd-sx9350 200 wat and installed alpine3552 amp did not use big cable for the pos. got my hot an ground coming from deck witch is coming from my 2000 ford expedict . also i no that the factory amp is hot and working. not sure what too do. from the deck to the amp rca plug now then does the speakerwires from the deck go too the amp or speakers wire straight to amp?power cable to amp pos need to come from pos from battery and ground wire? ground from body will be fine ? witch deck do u think is better the jvc that i listed or sony cdx gt 200?

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You need to use a cable negative and positive # 4. the proplem you have is a poor ground.

Posted on Apr 28, 2010

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Sony stacking system LBTd505, the sound from the record deck suddenly went very faint. The cd and radio sections are fine. I have tried a new stylus, but no difference. Any ideas?


You have two options. First a faulty cartridge. Or a faulty pre-amp in the main amp.
You can find out if the cartridge (and amp) are playing up. By removing the connectors on the cartridge.
Then with the volume turned up to about half, with your finger, touch each one of the wires one at a time. It will not harm you at all. But you should hear a loud buzz on one wire on the right and a loud buzz on the left on another wire.
The two other wires will either produce a crackle, or a tiny buzz, or nothing at all.
If you do hear a loud buzz on two wires. The cartridge is faulty and needs replacing.
If you hear a slight buzz on them or weak sound. There is either a bad connection between the deck and amp. Or the pre-amp inside the deck which is only used by the record deck so will not effect any other function, is faulty.
You can remove the record deck connections to the amp and again with the amp on half full, touch the inputs with your finger. If you are not hearing a loud hum or buzz, the pre-amp is faulty. If you do the connectors are faulty.

Jun 11, 2016 | Sony Audio Players & Recorders

1 Answer

Galaxy 88hl


always check your swr's.. it should be fine with those settings.
90% amps 1 to 5watts input is fine and then the modulation wattage of yours is good. most can take 50w RMS.
use short coax jumpers.. make sure the radio doesn't have the modulation limiter cut. and it is on frequency. and it should be good. maybe try putting little bit of wd40 on the microphone switch to see if thats the crunching sound..??
also make sure you have enough amperage.. and a good heavy gauge power wire to the amp..
if you have any more details let everyone know.. may help narrow down a problem.

May 03, 2013 | Radio Communications

1 Answer

My Kenwood amp shuts down and goes into protection mode after I play it for a minute or so. I have it cranked pretty loud. I have checked out my speakers and there are no shorts. I have a preamp between my...


could be you don't have enough voltage going into the amp or it could be the pre amp in between. if your voltage is below 11 volts then you need more voltage. you should have at least 12 to 14.4 volts.or you might have a small short in your amp.

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I have a 1991 chevrolet caprice classic and


BAD GROUND. CHECK GROUND CONNECTION IN THE KICK SIDE OF THE DRIVER PLACE, UNDER CARPET YOU WILL FIND A NUT ATTACHING SEVERAL CABLES TO CHASIS, CLEAN AND RE ADJUST

Sep 18, 2009 | 1991 Chevrolet Caprice

1 Answer

Mower won't start


How did you check the battery ?
It sounds like its a bit short of power to crank it over..
Try jumping it from a car battery..

Jul 24, 2009 | Craftsman 21 Hp 42" Deck, Ys 4500 Lawn...

1 Answer

96 Continental radio, no audio


I have the SAME EXACT problem. I thought it was the radio - bought another - went to change the units - heard an electrical arc - now the car cranks but doesn't start and the new radio doesn't work either!!! (not that it matters anyway)
Is there an electrical problem with '96 Lincoln's. Where should I start to diagnose the non-starting issue?

Jun 11, 2009 | 1996 Lincoln Continental

1 Answer

HAVE A KENWOOD AMP MODEL KAC-9102D . iT KEEPS SHUTTING OFF WHEN i TURN THE RADIO LOUD. ANY SUGGESTIONS


either bad ohm load or over heat if the ohs on the speaker wires to the amp are lower than specified use in the manual it will act funny cause it is pusing harder than its meant to and if it gets too hot either bad location or bad amp you can try turning the gain down a little until the amp stays on constantly at high volume

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1 Answer

Subs, amp, wiring or cd deck problem


It sounds as though you have probably blown the output transistors in the deck. Please note that if any of the spkr wires touch each other or touch the radio or amp chassis or if they come in contact with the metal body of the car that this creates a short circuit conditon and will destroy the deck and or amp. the fact that the amp still turns on and you have little or no output is an indicator of blown output transistors. The burnt plastic smell is another indicator of the same thing.Spkr wires and terminals must always be thoroughly insulated. Good luck and please don't forget to rate.

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1 Answer

Jenson touch screen head unit is all hooked up properly in a 2001 honda civic if i turn it up to around 25 with loud off and bass down it will shut off for a few seconds and then turn back on and repeat...


the onboard amp in the deck can't keep up and overheats inturn shutting off the speakers , this is common in jensen touchscreens esp the 9412 9512 and the uv 8 best thing to do is buy a 4 channel amp and the problem will be solved sometimes running a bigger constant power wire to the deck will help a little but not much better off buying a 4 ch amp

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1 Answer

Auto amplifier


It depends on if you want it to be able to play really loud and really clear. The deck will probably drive them pretty good on its own but when you really crank on some head decks the sound can start distortring.
Wheres the sub it the package?
Get a less powerfull, 50 Watt X4, amp and get a decent sub with a mono amp or they have all in one 4.1 channel amps. To drive the whole system and keep it easy.
Have fun

COEch

Mar 11, 2008 | Audio Players & Recorders

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