Amp turns on, but no sound

[Armstrong55]

Ok. I got that working and the amp turns on green with the radio, still no sound

 

[Trey803 5,000+ posts]

At this point you will need a volt meter and a 3.5mm to RCA cable. Both can be purchased for cheap at Walmart.

If you plan on making this a hobby I would just go ahead and fork out the 20 bucks to buy them. These two things will help diagnose.....it almost sounds like you have a bad HU but only one way to find out.

 

[Armstrong55]

what should the settings be on the HU under sub control, there is 80hz : 0 : -6

what should those be?

 

[Trey803 5,000+ posts]

Man its hard to know exactly without seeing the screen.

The sub should be turned on. No bass boost. And the cross overs should be set as I described. I will look at the manual again to figure this out....but this might not be the problem .

For that 80hz thing is that the bass boost or the crossover menu. Pictures would really help.

 

[Armstrong55]

It won't let me post the pictures here though

 

[Trey803 5,000+ posts]

 

[Trey803 5,000+ posts]

For your sub control menu

Cut off should be 80 to 125 depending on your sub and box...just use 80 for now.

Output should be at 0 for now

Slope won't matter for the issue at hand. -12db per octave is commonly used for subs.

 

[Trey803 5,000+ posts]

For the HPF setting I would use start with 125hz and -12db per octave

 

---------- Post added at 12:17 PM ---------- Previous post was at 12:17 PM ----------

 

Bass boost 0

 

[Armstrong55]

Okay, I will try that when I get back home.

 

[Armstrong55]

when I get the rca to 3.5mm cable and plug that in, with a song, will it only play bass if it works?

 

[mazdakid 5,000+ posts]

Where in Illinois? Do you have any other speakers or subs to hook up to the amp to see if maybe your amp is good but subs aren't working?

 

[Trey803 5,000+ posts]

Yea you should plug straight into your amp and only the subs should play. If no noise this means your amp or your sub is bad.

---------- Post added at 12:59 PM ---------- Previous post was at 12:59 PM ----------

[/color]Or use a DMM to measure the resistance(ohms) of the voice coil(s)

 

[Armstrong55]

Yeah I have some other speakers I tried, still didn't work.

 

[Armstrong55]

Yea you should plug straight into your amp and only the subs should play. If no noise this means your amp or your sub is bad.
---------- Post added at 12:59 PM ---------- Previous post was at 12:59 PM ----------

[/color]Or use a DMM to measure the resistance(ohms) of the voice coil(s)

I got the RCA to 3.5mm cable and played a song with a lot of bass, they worked amazingly, but without that cable with just the rca wire it doesn't play

 

[Trey803 5,000+ posts]

Ok that means you most likely have a bad pre amp outputs on your cd player.