Question about MTX Thunder 2-Channel Amplifier 502 Car Audio Amplifier

1 Answer

MTX 502 2 chanel amp Pre amp problem?

MTX 502 bridged into 2 ohm load. Power system up seems a little weaker than normal. Unhook left rca change in output. Plug left rca back in unhook right.. silence turn gains up no help... replaced rca help. Looked carefully over circut board for anything unuasual with no results. Also the left rca output is dead. Assumeing this is a simple problem early in the amplifieing process. Any help with maybe a scematics diagram??

Posted by on

  • Anonymous Mar 15, 2014

    MTX Powers On And Plays For A Bit Then Powers Off Then Sometime Power Right Back On Or Sometime it takes awhile to power back up and is not hot and never gets hot But power is right from battery and ground to frame I Need Help Ple

  • Anonymous Mar 15, 2014

    MTX Powers On And Plays For A Bit Then Powers Off Then Sometime Power Right Back On Or Sometime it takes awhile to power back up and is not hot and never gets hot But power is right from battery and ground to frame I Need Help Ple



1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that got 5 achievements.


    An expert who has written 50 answers of more than 400 characters.


    An expert who has answered 200 questions.

  • Expert
  • 218 Answers

Unless your amp is 1 (one) ohm stable then you may have fried it. When you attach a 2 ohm load across a bridged amp then you have effectivly placed each output channel on a 1 ohm load. Not a good thing in most cases. Try hooking up ONE speaker on one channel and one input to that one channel one at a time. Then switch the speaker/input to the other channel and see if you can get either or both channels to work independently. Needless to say you must turn the amp off before you make ANY change in the wiring.

Posted on Jun 25, 2007


1 Suggested Answer

  • 2 Answers

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

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.
Good luck!

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


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



Related Questions:

1 Answer

I need to know how to bridge the mtx speaker 4500

I assume you mean wiring a dual 4 ohm voice coil sub to a 2 ohm load, right?

Follow closely

Go from positive of the source (amp or positive post in box) to the positive of both voice coils.

Then go fromt he positive of the source (amp or positive post in box) to the negative of both voice coils.

You will be running two length of speaker wire for this. It's the easy way and makes sure that each voice coil gets clean power.

This is called a parallel set up and will bring two 4 ohm voice coils to a 2 ohm load.

Happy Wiring

Aug 14, 2011 | MTX Thunder 4500 T4510-04 Car Subwoofer

1 Answer

How can i bridge a mtx 9500 using a mono amp?

You cant bridge it to the MONO AMP . You can only bridge subs & speakers to 2 CH & 4 CH AMPS that are bridgeable. Because if it appears that there is 2 channels on a Mono amp its so its convenient for you to hook up 2 4ohm subs to it easily But both channels are actually connect internally together in parallel inside the amp unlike a 2 channel they are separate.

So just connect your mtx 9500 to a plus and a minus and doesnt matter which since all the + terminals of are connected together and - are connected together already.

Whats important is on the side of the sub/box it reads 2 ohms. The lower the ohms the more power the Mono amp will put out. Mono amps are designed to handle 2ohm loads.

If it reads 4ohms The MONO amp is the wrong amp to use cause the power will be weaker. So if you have a 1000 Watt Mono amp at 4ohms the sub will only get 500 WATTS Max while a 2 ohm will get the full 1000 Watts.

If it reads 4 ohms connect it to a 2CHANNEL AMP and BRIDGE IT (connect + of the sub to 1st channels positive of the amp then connect - of the sub to 2nd channels negative of the amp) . The power will be doubled when you bridge it on a 2 channel amp. NOW if it was a 2 ohm sub and you bridged it to the 2 channel amp it will fry the subs and ruin the amp. 2 CHANNELS CANT TAKE A 2OHM LOAD BRIDGED OK.

Apr 08, 2010 | MTX (SLH-T7512X2-A) Car Speaker

1 Answer

2 MTX Thunder Problem.. Bridging?

Is there a option on the chanels that say ''Bridged''? If so, you can hook the subs up in parellel or series to get different ohm loads. Usually the lower ohms, the more power amp puts out. Those subs can handle 225 watts RMS whitch means the power it can handle constantly. If the amp gives more than 225 watts RMs, you could be at risk of blowing the sub. If you could give me the model # of the amp, I can be of more help.

Feb 11, 2010 | MTX Thunder 4500 T4510-04 Car Subwoofer

1 Answer

Want to bridge 2 channel amp to push single 4 ohm dvc sub

Hello k_rabbit89,

A 4 ohm DVC sub can be wired in series like you described for an 8 ohm load or the voice coils can be wired in parallel for a 2 ohm load.

If your 2-channel amp isn't stable down to 2 ohms when the channels are bridged (most 2-channel amps are only stable to 4 ohms when bridged), you do not want the voice coils paralleled. The amp will overheat, go into protection mode, and eventually fail completely. A sub with 2 ohm voice coils would be a better fit. That way, you could series the coils for a 4 ohm load and the amp would operate OK with the channels bridged into that load.

But anyway, for the best power from THAT amp to THAT sub, your best wiring solution would be to wire each voice coil to a separate channel. The problem with that is that the signal to each coil needs to be EXACTLY the same or you will have one coil trying to move the cone out while the other one tries to move it in. You can closely approximate identical signals on the output side by using the same input to both channels. Do this by using only one RCA connection (either right or left channel) from your head unit and split it with a "Y" cable.

Hope this helps.

Sep 12, 2009 | Car Audio & Video

1 Answer

2 ohm speakers wont work on a lanzar max pro 4000 watt

The 2 ohm stable rating on the amp is PER channel meaning that you could effectively hook up a 2 ohm speaker or a 2 ohm load to each channel without the amp getting f"d up-butin bridged mode it will only be 4 ohm stable. to achieve a 4 ohm load with your sub the type x wire the coils in series that will get you at 4 ohms to run in bridged mono .But you will get the exact same amount of power if you wire each coil to one channel of the amp as bridged mono sees the sum of your 2 ohm channels combined-Hope that helps.

Jun 08, 2009 | Lanzar VIBE266 Car Audio Amplifier

1 Answer

I have a kicker zx700.5 amp

Hello aj_vidal22,

Here's the link to MTX's sub page where you can view or download the information you need to properly wire the subs to your amp.

For maximum power, you'll need to wire the subs so that they present a 2 ohm load to the sub outputs on your amp. That will give you the full 420 watts RMS the amp is rated for. Likewise, you,ll want the run the front 4-channels at 2 ohms. Run separately, they produce 85 Watts times 4 channels, or if bridged, 130 watts times 2-channels. But if you run fronts at 4 ohms, they only produce 70 watts times 4 channels and your sub output at 4 ohms drops to 210 watts.

Hope this helps.

Apr 17, 2009 | Kicker 06ZX750.1 Car Audio Amplifier

1 Answer

I'm having problems getting full power to my sub.

when bridgeing an amplifier it always sees half of whatever load you have on it, so if you have a 4ohm speaker when it is bridged the amp will see 2ohms, so yes you can bridge the 4 ohm speaker

Mar 05, 2009 | Bazooka ELA500.1 Car Audio Amplifier

1 Answer

I'm having problems getting full power to my sub.

A 2 ohm stable amp should be able to be bridged to 1 ohm (consult owner's manual for bridgability), but a 4 ohm speaker is a 4 ohm speaker and would need to be parallelled with another 4 ohm speaker to provide a 2 ohm load.

Mar 05, 2009 | Car Audio & Video

1 Answer

L7 wiring options

yes it should work fine i would bridge them up to 4 ohms each speaker then bridge them back bye conectin them on the amp by puting the red with the red and puting the black with the black if the amp only has 1 chanel then put both speakers red on the same positive on the amp and same with the negative now to bring the ohms up to 4 ohms conect the solid red to the black with dot with a short wire ok then the ones that are not run together will go to the amp giving offf 4 ohms and with the 2 speakers bridged together thay will reduce to 2 ohms witch means that eatch speaker will get about 600 wats of rms from the amp

Aug 14, 2008 | Kicker Solo-Baric L7 S15L72 Car Subwoofer

1 Answer

Mtx 801d

ASSUMING that the amp is OK with a 2ohm load then you "set it up" by the configuration of the speakers you use. Two 4 ohm speakers if parallel will give you a 2 ohm load. However, if you are bridging the ouputs then a single 4 ohm speaker bridged between the two outputs will put a 2 ohm load on each channel. Be very careful if you are bridging the outputs that you know what you are doing. On average, when bridged wrong (too much load) the amp will last about one month before it fries. Get some help if you are bridging. Be sure not sorry.

Jan 14, 2007 | MTX Thunder 801D Car Audio Amplifier

Not finding what you are looking for?
MTX Thunder 2-Channel Amplifier 502 Car Audio Amplifier Logo

Related Topics:

226 people viewed this question

Ask a Question

Usually answered in minutes!

Top MTX Car Audio & Video Experts


Level 2 Expert

150 Answers


Level 3 Expert

77932 Answers

Mark Skinner

Level 2 Expert

77 Answers

Are you a MTX Car Audio and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides