Question about Alpine MRV-T757 Car Audio Amplifier

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Blinking protection light on mrv-t757 amp

I have a mrv-t757 alpine amp with a 12 kicker cvr comp 2 ohm sub. The red protection light flashes. my sub isn't hitting very hard and sounds like ****. when i turn my music up my sup keeps vibrating and it wont stop till i turn my hu off. any ideas what could be wrong?

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Could be the power supply or output stage electrolytic capacitors.
Possibly breaking down/drying out inside.

Posted on Mar 17, 2008

  • ncarlson187 Jan 24, 2012

    How to fix and how can you tell what part its damaged?

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2 Answers

2 kicker cvr 12's in prewired kicker box with 1 wire terminal, kicker cx1200.1 amp. Whats the best way to wire this combo?


Well you really can't run both speakers on one term. because you will over heat the amp , unless your amp is rated at twice the capability of your subs , Then if so , Try positive to one sub , then neg. to the other sub , then bridge the remaining positive to the remaining negative terminal , But it is really best to get a two channel amp for your subs !!!

Sep 23, 2013 | Kicker Comp CVR 12 x 12 Car Subwoofer

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How do i wire a single 12" kicker cvr dual 2 ohm


Simple power fom amo to power on sub. Ground on amp to ground on sub

Feb 28, 2013 | Car Audio & Video

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My dual 2 ohm cvr12 kicker are burning on the red dot Connection what can it be and also the symtem hits fine for min then fade.


check that you have the correct impeedance polarity try turning down your amp gain most of the time its wattage match get as close of a match as possable ohms must be corect for amps specs

Nov 17, 2012 | Kicker Comp CVR 12 x 12 Car Subwoofer

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I have 2 18" kicker


First you need the OHM rating of the subs. Most of the time its on the box or the magnet on the back of the subs (normaly 2ohm 4ohm or 8ohm) And that of the amp. Most amps are 4 ohm output if its a 2channel and 2ohm output if its a mono. You NEED to know these cuz wiring it wrong can blow channels in your amp or cause it to cut "in and out"

Jan 17, 2011 | Kicker Car Audio & Video

1 Answer

AMP IN PROTECT MODE


have you tried removing the power from your amp, there are several reason to put an amp in protection mode, its usually due to incorrect wiring. ohms law???

Sep 11, 2010 | Alpine MRV-T757 Car Audio Amplifier

1 Answer

Alpine MRV-T757: Protection and Music light lite up green and Battery light Flashes Red? Do you know my problem?


check all of you connections especially the earth at the amp and the body of the car

Aug 12, 2010 | Alpine Car Audio & Video

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Red protection light on when power,d up from battrie is this normal


check the connector at the amp and make sure the wires aint touching also check ur speaker wire are rigged up right... do not run 2 subs off 1 channel as it will pop fuses and the procet light will come on

Oct 21, 2009 | Alpine MRV-T757 Car Audio Amplifier

1 Answer

Over heating problem


"how do i made amp ohm instead of 4"
What?
I think you're asking how to make the amp 2 ohm. If your 12's are already wired for 2 ohm, just connect the 2 leads to the bridged terminals on the amp. There will be 4 connections on the amp. One for each channel. Usually, the two outside terminals (one positive and one negative) are the bridge and it'll be noted with a line painted on the surface above the terminals. That's all you have to do.
If it is overheating, you should put cooling fans on it.

Aug 31, 2008 | Alpine MRV-T707 Car Audio Amplifier

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Alpine mrv-t757


Hi Big Nick,

 

Sounds like you have got almost all the good out of those Subs. You can find the screws you need at almost any hardware store or Auto parts store. The light is becase you are dloading the amp with low OHMS.  You may need use one channel and Run the wiring like written blow to get the power problem to disappear.

 

S1+ = Kicker comp cvr sub coil 1 positive

A+ = Amplifier Positive output.

 

 

A+ to S1+

S1- to S2+

S2- to A- 

Oct 18, 2007 | Alpine MRV-T757 Car Audio Amplifier

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