MTX Car Audio & Video - Recent Questions, Troubleshooting & Support


CHECK YOU CONNECTION YOU MAY HAVE PUT WIRE TERMINAL WRONG AN THE AMP GOES TO PROTECTION CHECK ALL SPEAKER TOO

MTX Audio Tna251 | Answered on Sep 12, 2019


THE GREEN LIGHT SHOULD SHOW WHEN AMP IS POWER UP AN RED WHEN IN PROTECTION MODE

MTX Car Audio &... | Answered on Sep 12, 2019


Try eBay Often available there from private sellers

MTX Car Audio &... | Answered on Aug 25, 2019


I was having a similar issue. I checked every wire from the battery to stereo to amp, checked the ground, pulled the stereo to double check the wiring was all correct. Everything seemed good so I thought it had to be my battery not putting out enough power. Tested it and it was good. What it turned out to be was the connection from the power cord to the battery. It had a tiny bit of built up corrosion that was making the amp go into protect mode. Cleaned it up and hooked it back up and has been golden since.
The link attached is pretty straight up on what you need to check for different circumstances. I'm guessing it's a low voltage issue. Good luck

MTX Car Audio &... | Answered on Aug 23, 2019


Necesito el diagrama esquematico de un amplificador mtx thunder 895 5 canales para saber el valor de unas resistencias quemadas

MTX Thunder 942... | Answered on May 25, 2019


Hola, tengo un problema con my amplificador MTX JH1200..tiene un abujero a?n lado de los capacitores.
Alguien ser?a tan amable de pasarme una foto por la parte trasera para as? poder hacer los puentes en las pistas?...de antemano muchas gracias y saludos desde M?xico...

MTX JackHammer... | Answered on Nov 11, 2018


its just a power light to let you know its on

MTX Terminator... | Answered on Nov 04, 2018


Check the wiring 1st then go down the line...Check speaker connections..Look at your power,ground and remote wire hook up

MTX Car Audio &... | Answered on Oct 18, 2018


It is a common problem when it is driven too hard causing overheating.

MTX JackHammer... | Answered on Mar 01, 2018


The amp is in need of testing. What you are describing is a bias voltage that is coming through the amp.

MTX X Thunder... | Answered on Dec 05, 2017


Your amp should not have a 50 amp fuse at the battery. It puts out 300 watts RMS (continuous power). The fuse at your battery should match the one that is on the amp itself. Your amp is overheating and there is a fault, possibly your speakers are wired to present too low of an impedance to your amp. Disconnect them from your amp, and use an ohmmeter/multimeter and measure the resistance load. It should not be lower than roughly 2 ohms. Depending on whether you bought dual 2 ohm or dual 4 ohm subs, that could be the heart of your problem.

If you bought D2 subs, you can get a 4 ohm load per sub with each sub's voice coils in series, and then parallel them together to get a 2 ohm load at the amp, which is perfect for your amp. Or you can wire each sub's voice coils in parallel, so that they're 1 ohm each, and then series them together at the amp for a 2 ohm load. The first method is simpler. Be sure that you haven't wired each voice coil in parallel (1 ohm per sub), and THEN also wired both subs in parallel to the amp (1/2 ohm load). That would definitely send your amp into protection mode, probably before it would have a chance to overheat. This is another reason why you should not have used a 50 amp fuse under the hood. If for whatever reason, the fuse on your amp doesn't blow, the amp is getting way too much current for it to handle, because of that 50 amp fuse under the hood.

If you bought D4 subs, you have a problem. If you've wired each sub's coils in parallel (2 ohm per sub) and then wired both subs together in parallel at the amp (1 ohm load) you're presenting too low of a load to your amp. Again, this will overheat your amp and send it into protection mode, both of which are what you're seeing. You never want to have two D4 subs with an amp that only handles 2 ohms, because you can't get a 2 ohm load with two D4s. You're stuck with 4 ohms or 1 ohm. 4 ohms cuts your amp power in half, 1 ohm cuts it off completely.

If you know for sure which way you've wired them, then you now have the information to tell you whether you've done it incorrectly or not. If you're not sure, first disconnect your subs and measure the resistance as I described in the first paragraph. If your amp is seeing a 1 ohm or 1/2 ohm load, there's your problem. If you see a 2 ohm load (subs are wired correctly after all) then you may have a bad ground connection, or your amp is bad and needs to be serviced/replaced.

If you need further help, I’m available over the phone at https://www.6ya.com/expert/reginald_bec291de192ca44f

MTX JackHammer... | Answered on Nov 19, 2017

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