Rockford Fosgate Power 1501BD

[Perry Babin]

If the preamp is producing enough output, I'd find the fault before doing anything to the preamp section (which ends at U4, pin 1).

 

[caraudioguy2100]

In the preamp section there are a couple of bad smd caps .

Do I go by the schematic or what since the pics you have don’t match the schematic ?

And also do you know the value of this resistor ? It looks like
A 240 ohm just wanna confirm

 

[Perry Babin]

Which caps?


R23 is 240 ohms in the photos and diagram.

 

[caraudioguy2100]

C26,C45 someone put in 0.1uf caps in both locations

 

[Perry Babin]

C45 will change the bass boost slightly. C26 will probably not make a difference.

What are the problems with the amp right now that are making it unusable?

 

[caraudioguy2100]

Still have very low output I’m trying to track down the problem

 

[Perry Babin]

The problem is likely after the preamp section since you had more preamp output than I did.

Did you see post #16?