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What is the biggest reason car amps fail?
What is the biggest reason car amps fail?
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Old 13th February 2018, 03:35 AM   #1
Jeff Mills is offline Jeff Mills
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Default What is the biggest reason car amps fail?

Bridging 2 channels with to low of a ohm load, causing power supply MOSFETs camp fire?
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Old 13th February 2018, 04:06 AM   #2
Life is an Enigma is offline Life is an Enigma  United States
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1. poor ground.
2. Not enough supply voltage / amperage to the amplifier.
3. Clipping your amplifier constantly. That will make heat.
4. To big of a fuse for the amplifier.That makes a nice fire.
5. Bridging to low. That will make heat also.
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Old 13th February 2018, 07:31 AM   #3
Bertje is offline Bertje  Netherlands
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Undervoltage use, due to poor grounding, poor contacts in power cabling...bad install jobs, I find tiny copper strands in amps.
In combination with low impedance loads amps will fail.
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Old 13th February 2018, 11:06 AM   #4
Gioba is offline Gioba  Italy
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What amp?
All amps are differents, each amp works his characteristics with.
"Car amps" is too much generic..
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Old 13th February 2018, 03:50 PM   #5
Jeff Mills is offline Jeff Mills
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Quote:
Originally Posted by Gioba View Post
What amp?
All amps are differents, each amp works his characteristics with.
"Car amps" is too much generic..

Valid point... But I wasn't wanting to start peeling back the onion. The question was intended to be generic in nature.
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Old 14th February 2018, 12:39 AM   #6
seankane is offline seankane  United States
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#1.........abuse
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Old 14th February 2018, 12:45 AM   #7
ppia600 is offline ppia600  United States
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Like others have stated


-Expecting too much out of the amp and bridging them to a load they can't handle / overworking

-Cheap amps that don't hold up well to vehicle vibration and components cracking loose from the board causing electrical chaos

-Loose grounds and too much resistance from thin power cables with poor connections causing higher current draw, overworking and overheating the amp

Even the best solid made amps can fail if they are run at lower than optimum voltage under low impedance loads for long periods of time, circuit protection can only do so much. Even the cheapest made amp will hold up for a respectable period of time if it is given proper voltage, not running too low of an impedance load, and secured properly to prevent excessive vibration rattling its internals apart.

There are several variables, some amps are designed to be more robust and sound better, but there are still crappy beat up Jensen, Power Acoustik, Pyramid, etc amps from the 90s floating around for sale that have never been repaired and are still working. There are also tons of U.S. Amps, Alpine, JL Audio, Rockford Fosgate, etc amps floating around that are blown to bits because of abuse. Choose your poison, lol
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Don't worry... you can always turn the gain down!

Last edited by ppia600; 14th February 2018 at 12:51 AM.
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Old 14th February 2018, 09:58 AM   #8
Gioba is offline Gioba  Italy
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Quote:
Originally Posted by Jeff Mills View Post
Valid point... But I wasn't wanting to start peeling back the onion. The question was intended to be generic in nature.
Ok, i understand, but it isn't as simple.
Howewer:

Quote:
Originally Posted by ppia600 View Post
Even the cheapest made amp will hold up for a respectable period of time if it is given proper voltage, not running too low of an impedance load, and secured properly to prevent excessive vibration rattling its internals apart.
[...]
Don't worry... you can always turn the gain down!
Yes, i mean it correct, and i don't will never understand why must to push an amp to the electric limits.
It's a good method for to lose all quality under signal noise, the slew rate, control and damping, and etc..
And te amp lasts less, especially the 80s and 90s amps which are the best..
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Old 16th February 2018, 05:32 PM   #9
Perry Babin is offline Perry Babin  United States
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Poor protection circuit design

wire strands in amps
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