Is it the subs or amps?

[10k-watts]

I have 2 skar audio 4500s for 2 psi 18s platform 3...the subs worked in a box I had them in a month ago...built new box for them...amps aren't strapped...on each sub...everything is hooked up correctly but subs aren't firing...I can only get them to fire when hu settings are with bass +6...loudness on mid or high...and sla on 2 or higher...I'm using new rcas...green lights on amps...I'm lost on why this is happening...using pioneer avic-d3...7yrs old but haven't had a single problem till now...

Mr. 10K

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[iLL Ridge 10+ year member]

Gains?

 

[jRi0T68]

Measure RCA voltage, amp input voltage, amp output voltage.

If those seem normal, measure your coil resistance.

 

[hispls 5,000+ posts]

This isn't terribly clear what's happening. Things aren't that loud until you go to +6 gain on the head unit or it doesn't make any sound whatsoever until you hit that then it comes in full blast?

 

[Hertz Mafia]

Are they wired out of phase? Do the pop test on them and see if they both move the same way.

And that battery doesn't look to secure.. seems like if I'd hit a big bump it could rock and ground out on that top amp case.

 

[nauc 10+ year member]

bad rcas?

man, that setup needs some work. that lower amps gotta get hot!

 

[Harvey20]

gains?