amp goes into protect mode after turned up

[s.l.a.b]

recently my amp (infinity kappa 54 4ch amp)started going into protect mode when i turned it up, can someone give me advice on what may be wrong

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[CAT MAN 5,000+ posts]

clipping... turn those gains down son

 

[maylar 10+ year member]

Check that none of the speaker wires have shorted to the car chassis.

 

[mast240 10+ year member]

set your gains properly with atleast a DMM... an O-scope is preferable

 

[15bass 10+ year member]

Ground might be loose.

Check if the amp over heats.

If it over heats its a bad amp.

 

[bugflipper 10+ year member]

May not be an issue today but years ago I had the + and - crossed to a speaker on one channel and hooked up right on the other channel. Would do fine on low volume, turn up and it would cut out. Wasn't any protect mode back then.

 

[Moble Enclosurs 10+ year member]

One possible thing that may not have been thought of is the resistance level. If you have the resistance wired at a lower resistance than that capable of the amplifier, it will want to push more current than possible, and could short the circuit, or trip the protection, and even blow a fuse if done suddenly at a very low resistance level. Check that your amplifier is capable of the resistance that you have the driver(s) wired at. May be a possible solution as well.

 

[s.l.a.b]

what do you mean by wired at a lower resistance?

 

[05trailblazer 10+ year member]

meaning if the amp is stable at 1 or 2 ohms and wire it down to 0.5 ohms your stressing it out

 

[Moble Enclosurs 10+ year member]

meaning if the amp is stable at 1 or 2 ohms and wire it down to 0.5 ohms your stressing it out

Exactly. But mainly when the ampere levels are exceeded, not necessarily just with voltage and resistance, but still very important not to exceed as well. Just not a good idea in any case to use a lower resistance wiring than the amp is stable at.

 

[globalminds_ent 10+ year member]

impedance they mean (ac) resistance is dc

 

[Moble Enclosurs 10+ year member]

impedance they mean (ac) resistance is dc

Impedance can be thought of as DC if it is biased/fluctuating, but yes...generally AC is frequency dependent and is related to impedance. Good point. //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif

 

[globalminds_ent 10+ year member]

^^^ this man knows his stuff hahaha but amp coming on and then going into protect I have 1 vote for bad ground