one amp going to protect?

[soulnomad 10+ year member]

i have a total of 3 amp 2 of which run my subs.they are all run from the same power/ground points but the amplifier that is going into protect at low volume has rca inputs from the other sub amps rca outs, thats the only difference.anyone had a similar issue or someway to troubleshoot this?thanks you!

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[Skitz 10+ year member]

Bring the problematic amp into geek sqaud and see if it's an amp fault and if it's not then it's a wiring fault

 

[stevew007 10+ year member]

need way more info.what make ,how are they wired? strapped? 1 per sub? what subs?

 

[soulnomad 10+ year member]

one amp per sub,i had them strapped at first (amp negs, master positive to load positive, slave positive to load negative,switches set and rcas correct) and i had some polarity issues.now i have them one amp per sub wired in parallel my load impedence is .75ohm per sub per hifonics brz2400.1 have overkill sufficient electrical.

 

[soulnomad 10+ year member]

everything was working full tilt for a straight hour and 45 min drive.no smells amps were barely warm after the ride.

 

[stevew007 10+ year member]

whats the electrical you have?

 

[West]

Try disconnecting the amp from the battery, leave it off for a few hours and then reconnect... its worth a shot.

Don't take anything to the Geek squad they are really worthless...

 

[soulnomad 10+ year member]

300A iraggi.g34 yellowtop underhood.2 g31 yellowtops in trunk.big 4 0/1 knu cable.3 runs pos 3 runs neg to rear.

 

[soulnomad 10+ year member]

lol yeah i can check the board myself (elec engr student) im just trying to see if there are any common faults for a problem like this before i pull it.

 

[West]

I has a similar issue with my Mcintosh amp. I think it was because I had to jump start my car, I sent it in for service and they told me that nothing was wrong. It probably just needed to be disconnected from the battery for a bit.

 

[soulnomad 10+ year member]

hmm for some reason i think ill give that a go.

 

[West]

hmm for some reason i think ill give that a go.

Couldn't hurt... lolz

Hope that fixes her!

 

[soulnomad 10+ year member]

didnt work any more suggestions.?

 

[West]

Whats the resistance on the sub connected to the amp thats failing?

 

[audiobaun 5,000+ posts]

i have a total of 3 amp 2 of which run my subs.they are all run from the same power/ground points but the amplifier that is going into protect at low volume has rca inputs from the other sub amps rca outs, thats the only difference.anyone had a similar issue or someway to troubleshoot this?thanks you!

I did, and it ended up being a bad coil on a sub..Pull the subs, and check them with a dmm..To rule the subs out first..Ill bet you have a bad coil though on one of your subs.