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I have an m&k mx-100 subwoofer that quit working. Red light is on, wiring all good. Rumbles when i turn ''min bass'' switch,and even plays for a few seconds if i turn switch but then dies. Any help on what to do? thanks

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6ya6ya
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Posted on Jan 02, 2017

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SOURCE: My car AMP will play for a few minutes, then just Turn OFF

Is your sub single voice coil or dual? If it's dual, is it wired in paralel or series? It's possible for an amp the heat up so fast, the outside is not hot to the touch. Also, the next time it happens, use a paperclip and short the 12+ to the remote wire on the amp and see if it comes on. Let me know, and be sure to leave feedback or I don't get paid

Posted on Oct 03, 2007

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CLUEPATEL
  • 138 Answers

SOURCE: subwoofer isn't working

If your wire connections are normal then the problem is due your woofer speaker. Its your subwoofer circuit error and must be repair thru replacing the damaged Component in the circuit

Posted on Dec 09, 2007

Drummernick
  • 440 Answers

SOURCE: Subwoofer will not work when connected

cheak setting in sterio out put for sub on ect does woofer have sperk wire going in and out use them then ok

Posted on Feb 11, 2008

  • 2 Answers

SOURCE: subwoofer goes to sleep

The receiver automatic speaker set-up set the sub volume at -12 and since it was not getting any signals from the receiver it was doing what it is supposed to be doing (going to the standby mode). This was troubleshooted by Onkyo tech support on a Sunday. All the best about Onkyo customer support.

Posted on Apr 13, 2008

  • 2 Answers

SOURCE: Royal 1280 MX green light turns red, does not run

The 1280mx has a circuit that detects the high current when the motor is jammed. The 5 watt, 0.5 ohm resistor/fuse (marked as R1) that is part of this circuit blew on my unit. No visible signs of failure, you have to remove it from the circuit board to test it. When R1 fails more current than normal passes through the R2-1k ohm resistor; need to check if it also failed.

Posted on Oct 18, 2008

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1 Answer

Describe your Venue SUB10 Subwoofer Problem: The subwoofer won't turn on at all. The red light doesn't even come on. Could it be the fuse in the subwoofer? If so, where is the fuse located?


You can remove the screw near the volume knob and the screw near the on/off switch - then slide out the amp remove the black and white wire - then check the fuse - if its blown look for we repair amps - ebay - if its good then it probably still needs work - it should turn red when plugged in and no signal and green when signal is present - which means amp is on.

Sep 11, 2011 | JBL Venue SUB10 Subwoofer

1 Answer

Can i use my jensen jxp340 amp with my one 800watt 12" 4 ohm subwoofer?


Yes, technically you can, however you will be putting both your sub and your amp at risk. One of the worst things you can do to a sub is underpower it. The easiest way to explain it is n ot giving enough power to the sub leaves it starving for power. The motor structure ends up working too hard to try and move the cone properly and what happens is the sub will usually seize up rather than blowing out in the term you usually hear (ie, I had my system cranked up and I blew my subwoofer).

Secondly, in an attempt to get any real sound out of the under powered sub, you'll probably end up cranking the gain and bass boost on the amp which ends up overworking the amplifier quite a bit and can in turn lead to fried out amp chips, burnt up circuit boards etc.

Thirdly, by maxing the gain bass boost you're going to end sending a lot of distortion through your subwoofer in an attempt to get some decent bass. Distortion kills both subwoofers and speakers alike.

So to answer your question, yes you can hook up your subwoofer to that amp and yes, it will probably play for a while but I wouldn't recommend it. Look for a class d or mono block amp to push your sub as these will give you the most power and best heat dissipation. They are designed to push subwoofers specifically and you will get better sound and longer life out of your equipment. A good rule of thumb is look for an amp within 100-150 watts of both your RMS power handling and your Peak power. Remember, when it doubt, always go a little bigger on the amp side of the spectrum. It's easy to "tune down" an amp by having the gain and bass boost at a lower level (50%, 25% etc), than to turn 'em all the way up just to get some bass and end up prematurely blowing out your sub, amp or even worse, both.

Dec 01, 2010 | Jensen JXP340 Car Audio Amplifier

1 Answer

NO BASS!!


1) Check the Subwoofer for continuity - At the subwoofer, one at a time, test the terminals for Continuity using your Digital Multi-Meter; if your DMM doesn't have a Continuity test, use the Resistance, or Ohms, test and check for Resistance in the Subwoofer Coil (be sure to disconnect the subwoofer wiring before performing these tests).
2) If they test out good, hook the wires back up and test the terminals at the terminal cup or at the Amp hookup if you didn’t use a terminal, don't hook it up to the amp yet. Sometimes the wiring inside the box can be a problem if it has come loose, or isn't making a great connection.
3) If you have a Sub or multiple Subs with Dual Voice Coils, or multiple Subs with Single Voice Coils, make sure your wiring is correct by checking here:
http://www.the12volt.com/caraudio/woofer_configurations.asp
4) Make sure there are no Hi-Pass filters, crossovers, or multi Channel switches enabled.
5) Replace your RCA cable/s with known working RCA cable/s from the Source/Head Unit to the Amplifier/s.
6) Check your Head Unit settings; make sure the Bass is turned up and/or the Subwoofer setting is turned On.
7) If you are still getting no or low output, try plugging in an MP3 player or CD player using a headphone to RCA adaptor and check for sound output. If there is still no or low output, your Amplifier outputs are probably burned out.

Jul 18, 2010 | Jl Audio 300/2 Car Audio Amplifier

2 Answers

Amp is on, but sub wont produce any bass


Make sure the subwoofer is set to low frequency, make sure subwoofer and bass are enabled on the headdeck. Make sure the gain is turned up on the amp, make sure the rcas haven't come out of the back of the head deck.

Aug 04, 2009 | JBL GTO14001 Car Amp

1 Answer

Bass goes off when i turn up the volume


You need to install a heavier gauge wire to your amp and a capacitor. It works fine at low volumes because there is enough wattage from the battery to power the bass output of the amp but at higher volumes the amp does not have enough power.

Heavier gauge wire supplies more poer, and a capacitor stores a reserve of wattage for the amp to use so that it does not run out while blasting your tunes.

Jun 02, 2009 | Fusion FEW12PK Car Subwoofer

1 Answer

Subwoofer wont go off.....vibrates like mad


Sounds like a short circuit, check all connections and check that it will work as set up. Some will only work as a mono(i.e. you use 1 caannel not a combination of both) could also be a loose connection.Also if the head unit is off, the amp for the sub should be off. Is the amp wired to permanant live? If so this will cause this. Wire to electric aerial switch on head unit.( there will be a live wire and a switch wire on amp).

Jun 02, 2009 | Rockford Fosgate Punch Stage P110 S4 Car...

1 Answer

I turned my 15" L7 kicker and smoke started to come out the box


As stated before, knowing the impedance of your subwoofer would really help the situation. Either way the link I have provided is to your subwoofers manual (Incase you dont have it)

But since you have said it has smoked, if it still works I recommend turning the bass boost down (Bass boost causes alot of heat within the subwoofers voice coil and even within the amp itself and should never be maxed out.)

Here is a link to your manual for the subwoofer.
http://www.kicker.com/sites/default/files/SoloBaricL7Series.pdf

So as a solution to your issue, keep your bass boost turned down. You should almost never need it if you have tuned your amp correctly (You have a very serious subwoofer there)

Consider yourself lucky if your subwoofer is still working without issues.

Feb 09, 2009 | Kicker Solo-Baric L7 S15L72 Car Subwoofer

2 Answers

LIGHTS ON BUT NO BASS


Is the master/slave switch set to master? Have you tried feeding the signal into a different amp to make sure that there is signal reaching the amp?

Sep 18, 2007 | Car Audio & Video

2 Answers

Powers on but no sound


Check the main amp fuse under the hood, even if it looks good just change it. Often times that light on the amp can come on just from the power amp tunon wire. Try a friends subwoofer box just to make sure the connectors on your box are good, and if that doesn't work then give me some more details....year/make/model of car, what kind of sub, what types of things do you see on the side of the amp....is there a green light as well as a red light?

Aug 18, 2007 | Xtant A3001 Car Audio Amplifier

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