Do I need more amp or a higher preout voltage?

[DBfan187 5,000+ posts]

use a 1kw 0dB tone

 

[grampi 10+ year member]

put the dmm leads on the rca cable's on one of them f.e. the left channel one, then set dmm to read AC, turn vol up to 20, see if u get a reading at all.

That's what I did and nothing. It didn't read anything in AC or DC.

 

[luvinthebass 5,000+ posts]

even with a 1 khz tone?

 

[grampi 10+ year member]

How are you testing the pre out voltage?
Did you try swapping out the HU for another?

I'm testing it by playing a regular ol' music cd at about 20 on the volume and putting the dmm leads between the outer metal casing and the inner pin on the RCA where they connect to the amp.

I don't have another HU to swap.

 

[nismos14 5,000+ posts]

Have you checked to see that the sub is even playing for sure?

 

[grampi 10+ year member]

even with a 1 khz tone?

I'm just using a music cd. It should read something even when using a music cd.

 

[DBfan187 5,000+ posts]

turn the volume up to 33

 

[luvinthebass 5,000+ posts]

i think your preouts are shot if you can't get anything.

 

[grampi 10+ year member]

i think your preouts are shot if you can't get anything.

It's a brand frickin new HU!!!!!!!! How can they be shot?

 

[luvinthebass 5,000+ posts]

i have a pioneer and when i turn it to max(vol 30) i get 2.2 volts with a 1 khz 0 db tone. it's clipped though so i back to 29 and get 1.7 volts at the rca cable and set my gain at that volume. hope u see where i'm comin from for hu's voltage and gain setting.

 

[luvinthebass 5,000+ posts]

It's a brand frickin new HU!!!!!!!! How can they be shot?

shit happens, must been a short somewhere.

 

[nismos14 5,000+ posts]

Have you checked to see that the sub is even playing for sure?

 

[grampi 10+ year member]

i have a pioneer and when i turn it to max(vol 30) i get 2.2 volts with a 1 khz 0 db tone. it's clipped though so i back to 29 and get 1.7 volts at the rca cable and set my gain at that volume. hope u see where i'm comin from for hu's voltage and gain setting.

Yes I do, but right now I need to figure out if my problem is my amp or the HU. I don't see how you can blow a HU's preouts, especially a brand new one with less than 2 hours total playing time. But it makes no sense that I can't read any voltage on these preouts.

 

[nismos14 5,000+ posts]

Could be a faulty HU, not something you did.

 

[nismos14 5,000+ posts]

Do you have subwoofer turned on in the Setup menu?