owners of an alpine 9886

subsonic is like 25

lpf is 80ish

and ive tried rca's in all three places, same thing. im going to try an old headunit tonight if i can

im going to call dj when i get out of school, maybe he can help.

 
im pretty sure its a HU option, or my HU is bad. im going to try a new one. but for anyone that has the 9886, is there a sub on off setting or something i missed?

 
It has a subwoofer off selection I think, can't remeber as I would never turn them off. My 9886 sadly blew out all the rca's so if no luck see if thats the case...

 
i still never found subwoofer off selection. i see a bass scale, a subwoofer scale, and a different sub thing that is like q1 to q4 at 80hz orsomething. i think maybe the rca's blew out

 
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