Question about Alpine MRD-M605 Car Audio Amplifier

2 Answers

I have an Alpine MRD-M605 amp that recently has started having issues. My subs only produce sound when my deck is turned up full blast. The setup had been working for over a year with no problems. The subs are not blown as they still play flawlessly when the deck is turned up all the way. The digital meter on top says my amp is still getting ~13.6V so that is not the issue, I am also not getting any error codes/shutoff. Also, I assume it is getting a signal since it is able to play at high volumes. Any suggestions?

Posted by on

  • russell_bera Jun 24, 2009

    Sounds reasonable. I have an aftermarket Kenwood DDX512 deck with 2 preamp outputs (the front output works fine as I have an amp running my front speakers). Is there an easy way to test whether it is the preamp in the deck or amp that is screwy?

×

Ad

2 Answers

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    President:

    An expert whose answer got voted for 500 times.

  • Alpine Master
  • 1,114 Answers

If your deck is aftermarket; Does it have a dedicated Subwoofer output? if so, check the control in the deck (sub gain). If you are using a factory radio, and a high to low level adapter (speaker wires to RCA), it may be bad (not too uncommon) or check your fader front/rear any difference? Otherwise, you have one of two problems. A bad preamp in the deck or a bad pre amp in the amp. Both are fairly uncommon. More than likely it's a setting. Hope this helps

Posted on Jun 23, 2009

  • Frank Fulton
    Frank Fulton Jun 24, 2009

    Well, that's good and bad. The good news is that you have an aftermarket deck! your 50% ahead of the curve! Bad news is the problem is more than likely in your amp. The last thing to try would be to swap the preouts on the deck F/R and check. Generally though, preouts don't go bad. Turn the crossover "off" at the amp and play your subs full range at a "Low" volume. If they still sound "distorted" you definately have a problem with the amp. Take it to a car audio shop and have them bench test it first, then repair if needed. Hope this helps

×

Ad
  • Level 1:

    An expert who has achieved level 1.

    Corporal:

    An expert that has over 10 points.

    Mayor:

    An expert whose answer got voted for 2 times.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 6 Answers

Could also be the RCA's also maybe your amp reset if a one point the battery was disonnected thereore your gain went back to a lower V setting

Posted on Jun 27, 2009

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Ok i got a mtx 12' 500 sub matched to a alpine mrd-m500 mono amp. The deck powers the 4 speakers, as i turn the volume up on my deck (alpine cde 100) the sub/amp cuts out at around volume 20-22 and E-3...


Sorry,after rereading your problem,I gave a wrong answer.Do you have the deck sub RCA pre-amps connected to the amp,then the wires from the amp to the sub?If you do,you need to check what the sub and amp are rated as such as,peak or rms.They are 2 completely different meanings.Greg

Feb 11, 2011 | Alpine MRD-M500 Car Audio Amplifier

1 Answer

I have everything hooked up properly and the subs are putting out a little bit of sound but arent very loud. I had this system in another car and it sounded great. Do I just need to re-tune my amp or what...


yes, it sounds like you need to turn the gain up more than what it is. if you are certain that the wiring is correct and you have the source unit tuned properly there is not much more that it can be.
cheers

Jan 11, 2011 | Alpine MRD-M605 - V12 MONO AMP 600WX1 RMS...

1 Answer

Is the alpine 3552 any good? I can't find any reviews.


alpine makes amaizing amps... as long as it's matched to the speakers/subs you are going to put on it this amp will last you a very long time... and it will put out amazing power... you won't be disappointed.

Dec 02, 2009 | Alpine MRD-M605 Car Audio Amplifier

1 Answer

CUR display


Hello yte1771,

You can download the manual from Crutchfield.

The "CUR" display is an indication of excessive current and is most likely caused by too low impedance or a fault in the wiring or the amp itself. It's probably not your cap.

Hope this helps.

May 18, 2009 | Alpine MRD-M605 Car Audio Amplifier

1 Answer

Installing two amps


No, thats what you don't what to do. Even if you have 2 matching amps you don't do that. Every amp puts out different, and for 2 subs, you want to play at the the same time. If your only running 2 10's, I personal would just run the alpine (it's a mono amp made especially for subs) thats plenty for what you have. make sure you bridge them to get the full response. And your other amp i would use for your highs or mids, but run it @ stereo , which is 300 w @ 4 ohms. (Note: 600w @ 2ohms would be bridged and would play in Mono)

Building Competition stereo's is a big hobby of mine.

May 04, 2009 | Alpine MRD-M605 - V12 MONO AMP 600WX1 RMS...

1 Answer

CUR on alpine MRD M 605


check your ground and make sure you battery power is connect properly

Apr 14, 2009 | Alpine MRD-M605 - V12 MONO AMP 600WX1 RMS...

2 Answers

Alpine mrd m500 amp is not pushing my 12 in infinity sub


If you have a dual voice coil sub, make sure that you have the positive and negative terminals connected properly. If you have ONE of the coils wired backwards, it will cause the speaker to produce little or no sound.

Have you set the gains properly?

Are you sure the amplifier is receiving a strong signal from the head unit?

Have you tried it with a different speaker?

Jul 19, 2008 | Alpine MRD-M1000 Car Audio Amplifier

1 Answer

Alpine amp mrd-m605


The amplifier probably has shorted output transistors. If the amp gives the same error message with the speaker wires disconnected from the amp, the amp needs to be repaired.

Dec 30, 2007 | Alpine MRD-M605 Car Audio Amplifier

1 Answer

Mrd-m605 troubleshooting\


Yeah, how about you give us more info please.

Oct 26, 2006 | Alpine MRD-M605 Car Audio Amplifier

Not finding what you are looking for?
Alpine MRD-M605 Car Audio Amplifier Logo

327 people viewed this question

Ask a Question

Usually answered in minutes!

Top Alpine Car Audio & Video Experts

xxxxxx xxx

Level 3 Expert

4862 Answers

Tygh Duval
Tygh Duval

Level 2 Expert

300 Answers

Jaime Hernandez

Level 3 Expert

2318 Answers

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

Answer questions

Manuals & User Guides

Loading...