Question about Car Audio & Video
Every time I play loud music my amp goes into protection mode but if I turn the radio off n turn it back on it works can anyone help
What size is the amp and how many watts is the speaker(s) you have it ran too? If your speakers are trying to pull too much power from the amp it will turn itself into protect mode to keep from blowing a fuse as well as if you are pushing to many watts into small small speakers it will do the same to protect from blowing the speakers I would recommend turning the settings on the amp down slightly and then trying it out also make sure your wires arnt crossed adjusting the setting as it plays is the easiest way to fix the problem also make sure the bass isn't all the way up on your head unit
Posted on Jul 12, 2013
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Posted on Jan 02, 2017
The most common cause is an unsafe load/speaker impedance. If you have the speakers wired correctly, you may have a short in the wiring. If the wiring is OK, the amp is likely defective
Let me know if you have any other questions.
Posted on Oct 14, 2008
Hi does the amp return to normal operation once the volume is lowered? If so it sounds like the amp is seeing too low an ohmage due to the way the subs are wired & they are drawing too much current so the protection circuit intervenes to prevent damage.The minimum ohmage this amp must be operated at is 2 ohms so if you are running at 1 ohm this will cause the problem you are experiencing.
Posted on Nov 15, 2009
SOURCE: Amp in Protection Mode
With your multimeter set to DC volts, the black meter lead on the ground terminal of the amp and the head unit on (so the amp will have remote voltage applied), touch the red lead alternately to the B+ and remote terminals of the amp. If the voltage drops below ~11 volts, you need to check the wiring feeding whichever line is too low.
If the voltage remains near or above 12v, disconnect all speaker wires and signal cables from the amp. If it powers up, the wiring needs to be checked. If it still shuts down, the amp likely has blown output transistors.
Posted on Dec 20, 2007
Have you checked the REM wire, if it is the wiring may have gotten fried.
Or you may need to get new parts replaced within the amp.
Both issues happened to me.
Posted on Mar 27, 2009
Very likely to be a bad earth.
Check the earth connection to the chassis of the vehicle. Remove the screw/bolt and clean around it with a wire brush or wire wool.
May also be a good idea to check for continuity using a multimeter.
Remember to try to have the earth connection as close to the amp as possible, as this will cut down on the risk of a bad earth and will minimise interferance.
Posted on Apr 13, 2009
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