Question about MTX Thunder 801D Car Audio Amplifier
Posted on Feb 05, 2015
Red light means Protection mode....
some of the reasons a amp will go into protection mode is
1) overcurrent - the amps power wire is shorted or the amp is fried
2) thermal - will go off when the amp cools down
3) Short circuit - the load on the output is too low
4) you have your speakers off balance. exp: 3 speakers hooked up instead of 2 or 4 or larger to smaller speakers ratio
5) your power supply wire is to small of a gauge
To reset your amp or moving your speaker and subs wiring around to ensure balance.
Hope this Helps and Good Luck
Posted on Nov 28, 2014
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Posted on Jan 02, 2017
make sure the power wire and the remote wire have voltage. at least 12 volts. make sure the ground wire is good and has a good solid ground. after that make sure the rca cables are getting signal from the radio. if you have a small speaker or tweeter you can touch the wires from the speaker to the rca cables and it should play music very quietly. meter the subs and make sure theyre ok and not shorted or bad. if all that checks out good.... the amp is probably bad. start with all the simple stuff and work youre way up. if the amp has good power and signal and good speakers then the only thing thats left is the amp. good luck
Posted on Dec 30, 2009
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Sony generally drives their power light from a source that does not rely on the amplifier's switching power supply. This means that it's not a good indicator as to the health of the amplifier.
As long as you have B+ and remote voltage, it will light up. Since you've tested the speaker and the signal source, I think the amplifier is likely defective.
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