Question about Alpine MRD-M300 Car Audio Amplifier

1 Answer

My amp light turns on but thares no sound

Ok i hooked it up in my truck to a type 12 alpine it was working i had it on low and it just stoped and now it works the screen says every thing but the volts and no sound comes out what do i do

Posted by on

1 Answer

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 2 Answers
Re: my amp light turns on but thares no sound

Problem in sound output section,please replace output I.C. or transistor.

Posted on Mar 28, 2007

Add Your Answer

0 characters

Uploading: 0%


Complete. Click "Add" to insert your video. Add


3 Points

Related Questions:

1 Answer

What amp would be better to use with what speakers/sub? I have a KAC-7202 kenwood 920W maximum power (150wX2 RMS, 4ohms) (230wX2 RMS 2ohms) and then the other amp I have is a Alpine MRP-M500 mono power...

I'm using that Alpine right now for 2-12" subs and I have compared it to 6 or 7 other amps this month and most were 4 channel 150Watt/Channel Bridged to 300Watts x 2 and found the Alpine to be superior in both sound quality and loudness. The Alpine has also not turned off even with full volume for hours at a time, Very solid amp I was very surprised due to it's size!

Apr 04, 2013 | Kenwood Car Amplifiers

2 Answers

2 12" subs + 600W amp. Turn on, goes boom once, then red light

Is your gain all the way up? If it done this before, sounds like your over working the amp. Make sure your subs ohm load is capable with the amp load to. If they are 1 ohm and your amp is only 2 ohm stable, it would beat for a lil bit then go into protection mode to. Check your wires too.

May 13, 2010 | Insignia 600W Bridgeable Amplifier with...

1 Answer

1000 w sony xplode works at low volume then red lights at volume5

Most likely one of your subs are blown, or the Ohm's are too low for the ampliphier. Try hooking up one speaker at a time to the amp and see if it does the same thing. If it shuts off on one of the two speakers, that speaker is most likely blown.

Apr 19, 2009 | Sony Xplod XM-1652Z Car Audio Amplifier

1 Answer

Amp keeps shutting off

you dont have it bridged right your dropping your ohms down way to low.. when you go to bridge your amp you have a negative and a positive on your amp thats it i have an alpine v-power mrp-m350 i think there identical should be but anyways you have to buy a Y splitter there RCA JACKS its has the 2 ends that plug into your amp than ties into a single one its a male or female adapter the place were your gonna get it w know the trick of these amps when bridging is only keep your left channel cable plugged in to your cd player i think its white colored dont plug the other one in rap tape around it or get a rubber cap and put over it.. run your RCA cables to your location of amp location and do the same just tie that into your left channel and tape or get a rubber cap to put over the other one i wish i could draw you a diagram of it hard to explain when typing it if you have a cell phone or house phone i would prefer you calling me from a cell so i dont get charged a fortune my cell number is 1814-594-2667 call me i will get it working for yeah hope to hear from you soon my name is Brad

Jan 07, 2009 | Alpine MRP-M350 Car Audio Amplifier

1 Answer

Not enough bass

its prolly the deck, did you try turning the alpine's input gain controls up...

its not the wiring, if the wiring was insuficient, it would just melt...

you might also see if you could adjust the bass frequencies or crossover frequency, the crv might just have a different resonant frequency then the rav 4

May 16, 2008 | Alpine MRP-M450 Car Audio Amplifier

1 Answer

Amp is getting hot

amp naturally get hot but not hot enough to burn your finger.if all the speakers working,no distorted sound(sound clear),the problem might be the ventilation(free air flow) of amp.check the blower fan if working or check the exhaust holes maybe it is blocked. here are the other reasons; 1.)speaker wires touched the chassis ground. 2.)mismatched speaker to amp impedance. 3)overdrive input or u tap low input(from amp) to high output(of stereo) 4.)ur amp is out of bias. u need an audio technician for this... hope this help u...

May 15, 2007 | Alpine MRD-M1005 Car Audio Amplifier

2 Answers

Sound issue

Is the fuse good? Is it hooked to 12 volt source? Are the speaker wires good? What does "the light" have to do with it?

Feb 22, 2007 | Alpine MRV-1507 Car Audio Amplifier

2 Answers

Alpine mrp-m450 Amp won't stay on

im having the same problem with my amp, I took it to best buy and they said the amp was recieving power and recieving signals from the deck and i had everything hooked up right but that in the circuit board all the connections were blown, meaning i have a blown amp, i hope this isnt your problem but it definetly sounds like it. GOODLUCK

Nov 12, 2006 | Alpine MRP-M450 Car Audio Amplifier

Not finding what you are looking for?
Alpine MRD-M300 Car Audio Amplifier Logo

Related Topics:

136 people viewed this question

Ask a Question

Usually answered in minutes!

Top Alpine Car Amplifiers Experts

Tygh Duval
Tygh Duval

Level 2 Expert

290 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

6811 Answers

Steve Sweetleaf
Steve Sweetleaf

Level 3 Expert

1128 Answers

Are you an Alpine Car Amplifier Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides