Need Help ASAP

[BNolan12 10+ year member]

Just finished putting my system in, 2 JL 10's on a JL 500x1. Amp has voltage but nothing coming out of subs. What should I look for and correct?

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[audiobaun 5,000+ posts]

Id check the RCA connections, to see if you hooked the wrong ones up by mistake,like ft,or rear..Ive been guilty of that in a rush,,Headunit settings/sub woofer control..Amp LPF Switch ..make sure its on, be careful, and be sure the gain is down/not maxed out..Remote wire connected to the headunit, and amplifier

 

[Bgfx 10+ year member]

Have you checked your rca's...I imagine you have but it's something I may have forgotten

 

[BNolan12 10+ year member]

Checked RCAs. They confuse me I have 2 sets of the standard red/white RCAs but I also have a place that says "SUB OUT" but it's only takes a single wire hook up. It throws me off bc to me it should have a place for two, red and white. I have messed much on headunit. I thought I would atl least get something out of my subs.

 

[Bgfx 10+ year member]

Take a pic? What is the radio? Some radios have a subwoofer output or a crossover that may need to be adjusted

 

[neo_styles 10+ year member]

Sub signals are mono, hence the reason for one RCA jack. You can sum a stereo signal to mono using a splitter or you can just make sure the same color of a pair is connected at both sides.

 

[BNolan12 10+ year member]

It's a older Jensen headunit I will try the single sub output setup

 

[BNolan12 10+ year member]

Gave up for the night. Still same problems. Amp powers on at 14.5 volts and remote wire is intact but no sound/signal to subs at all. Guy I got the amp from SWEARS it was not defected when I got it. Just trying to troubleshoot this problem.

 

[Bgfx 10+ year member]

Just double checking but did you hook the subs up in the box?

 

[BNolan12 10+ year member]

Subs were wired in the box but when I noticed nothing was happening I redid everything and just set a sub outside next to the amp with a quick wire connection just to see if I can get power.

 

[ace_800 5,000+ posts]

You probably have the sub off on a setting in your deck. Did you get a y splitter to mono the sub out?

 

[BNolan12 10+ year member]

You probably have the sub off on a setting in your deck. Did you get a y splitter to mono the sub out?

No I didn't. I just have the RCA's plugged into the rear channel RCA output

 

[ace_800 5,000+ posts]

No I didn't. I just have the RCA's plugged into the rear channel RCA output

Check your HU settings and what are the amp settings?

 

[BNolan12 10+ year member]

Check your HU settings and what are the amp settings?

On my headunit, what should my sub LPF be set on?

 

[ace_800 5,000+ posts]

Iirc 60