Car Audio Central - Ultimate Car Audio Forum and Community

Yup, definitely had the Y adapters on there.. So you think it's definitely the ground? Thanks for the quick reply

Hey guys.. I just installed my 12" alpine type-r along with my jbl bp600.1. Everything works fine, except when I turn the car off.. the subwoofer produces a couple of extra beats.. Also I noticed when I turned the car on and tapped the break pedal you could hear the sub beat a little bit. Has t...

So what about the other RCA's? Do the fmods connect into the rca inputs on the amp then the RCA cables connect into the fmods?

Hi, I am planning on getting 1 12" alpine type-r and I wanted to pair it with the JBL BP600.1 inside a ported box. I guess I need a subsonic filter, which this amplifier does not come with. I heard of the F-Mod, but have no idea how to connect it or anything like that. What kind of F-mod would ...