250 slx sub wiring question

[Blnewton]

I just picked up my new 250 slx and while the stereo sounds good the sub just does not seem to be getting enough power. Can someone help on how the wiring is bridge in the current amp and how I would isolate the current sub onto its own amp. Thank you

 

[papogator24]

What year is your boat? What is the set up you currently have?

 

[Blnewton]

It is a 2008 with the upgraded Polk audio system

 

[CIRRHOSISOFTHERIVER]

Got a pic of your current set up?