Question about Alpine MRP-M1000 Car Audio Amplifier

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Sound from amp sounds similar to an unravveled coil on the woofer. Tried a differen (known good) woofer Same problem. When volume is at very high leveles the woofer plays for a fraction of a second then stops. Nothing on the circut board appears to be loose.

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  • Anonymous Mar 18, 2014

    unit is playing ok at low volume increase volume and player stops

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I am having the same problem with mine was told that the amp is not pushen to the sub and to test it with another speaker if it does the same thing with the other speaker then it is the amp if it dont and the second speaker works then the sub is shorten out the amp so i wil have to replace the sub ...eather way if you bought this new they are gonna charge me 70 dollars to fix it they being alpine. I rather pay 70 then another 400 dollars good luck to you and wish me luck gonna hook it up to another speaker tonight

Posted on Sep 21, 2010

  • Alphascan Oct 01, 2010

    this is the EXACT same problem to the T that i am having...and apparently we're not the only ones...alpine like he said, wants 70 ta send it there n back...i think this is a comon problem and maybe they need to investigate this further. i love alpine to death but i spent the money for a good product, not a comon failure part. hope u guys figur it out

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Posted on Jan 02, 2017

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Thank you but i do have the manual .i need the schematics for the xr 8600, or the site to download from


Internal fuse. Or fuse near the speaker connections.

Remove power. Remove back cover look for
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125V 5x20mm Fast-Acting Glass Fuse

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I have a single 15" sub woofer in a box it was


Simply put, burned voice coil. Either too much power can do this or not enough power with distortion. solution- if the sound is clear then its too much power- turn the amp down. If the sound is distorted and raspy- its not enough power and your getting distortion-get bigger amp.

Jan 07, 2013 | Car Audio & Video

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I have a couple active phobic loud speakers, one is completely out of commission and won't play anything. The other will play sound but only through the tweeter, while the speaker itself does nothing. I...


The tweeter is working but the woofer driver isn't which will change the impedance (ac resistance) of your amplifier output. The other speaker isn't working which will again, change the impedance even more. This could eventually damage the I.C. amps should you apply too much volume to the speakers.
You can turn the volume up to normal listening level and with your finger, slightly press the cone on the woofer in and out a couple of time. Does it engage in sound when you do this? If so, the woofer's coil is damaged and the woofer must be replaced. No sound? Open up the speaker (stereo off) and make sure both wires are fully secured to the woofer. Should they be attached securely, your woofer is probably defective. Should you have a crossover network, you can obtain a good, known working woof and temporarily wire it where the old woofer goes, turn on your stereo (minimal volume) which can verify the network pcb (crossover) is working.

Apr 13, 2011 | Audio Players & Recorders

1 Answer

My Onkyo sub-woofer sounds like something is loose in it or rolling around...the sound is similar to shaking a can of spray paint. When I plug it in to the system it sounds crackly. If i turn the volume...


sub woofers are very powerful bass , with incredible sounding technology. your problem might be with the woofer wall around the circle. open the box and take the woofer out.Check if there is any tare over the corners of the cloth. sometimes there might be a crazy noise because of a little opening in the cloth caused by small tare.. if so better change it with a new 1 and make sure that the new cloth has guaranty
damaged sub woofer eg. images?q=tbn:and9gcqv8lxhmuosnjkfywvef7uujnntmudkhhpl-pghy0i7xushrda- torn cloth- images?q=tbn:and9gctcogf_osbsmo3vmcu1vjnpozksylq4nojwpbojuo3w28zvb3honw
Thanks for rating good luck

Feb 08, 2011 | Onkyo SKW-200 Subwoofer

1 Answer

No sound out of 15 speaker and only about half the sound out of horn


1. Confirm the woofer is not blown. Remove it and test it by using an AA battery and wire from the battery to the woofer terminals. When connected, the cone should jump. Alternately, if you have a meter, you can measure impedance. Infinity (or no jump with the battery method) means the coil is open and the speaker needs to be reconed.

2. If the woofer tests good, inspect the connections and wires from the input. Ensure there are no breaks. If the crossover includes a PC board, check for cracks or solder breaks and blown fuses / thermal damage. Repair as necessary.

If the woofer tests good and the wiring and connections are sound, reinstall and test. If there is still no sound from the woofer, test it by conecting it directly to the amp. If there is audio coming through the woofer, the issue lies within the cabinet. Consider replacing all internal cabinet componentry, including inputs. If the input is a 1/4" jack, it is likely thae contacts are bent out, away from the connector. Bend them back to center slightly, and clean them with alcohol or "deoxit".



"Half" the sound from the horn seems normal, as it is not intended to produce bass. If you mean half-volume, that is dependent on settings and measurements and is difficult to diagnose. clmrt5000_1.jpg

Jan 07, 2011 | Yamaha S115-IV 15" PA Speaker Cabinet...

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So I've kept my Studiophile BX5a Deluxe monitors in good shape, but I noticed that every sound I tried to generate via Ableton Live on my Mac, a buzzing sound would accompany the sound. For example, I...


See if you can isolate the buzz to one woofer or tweeter. If a woofer, gently and evenly move the cone in and release to feel / listen for scraping. If you notice any scraping, the voice coil could be shot - a small bobbin of copper wire may have deformed andis now rubbing. Occasionally if a speaker is dropped, the magnet can shift, which will then rub the coil.

In any case, if there is coil rub that causes the buzz, you need to replace that driver.

If the buzz is electronic in nature, assuming these are the powered versions, a qualified service tech will have to diagnose and repair.

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Dear Sir, I hav dell vostro 1015 laptop with windows Xp Operating system. I have purchased 4.1 subwoofer system. When i am connecting subwoofer to pc audio output & all 4 speakers to back of...


Recheck your wiring and instructions. If your woofer is self powered perhaps the amp is no good. Actually it better have amps since the laptop output will not power those speakers.

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In my system the sound is low i am fixed 5.1 sub woofer intex.


so like you mention your problem that you have problem with speaker sound problem so i tell you sir that you better search for a good sound card that could match your cheapset there are now day's different sort's of sound card available in the market depend on your use & need requirement most of them do complain this issue b'cause the sound card which come on the chip set does not support 5.1 channel surround system so better consult to a well known hardware engineer for this computer issue untill then have happy computing & see you soon sir...!

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