hey guys help me out here...
just wired up an audioque hdc315 to a DD m1b and it literally has no sub output.
i had to turn the gain all the way up and still had the hu turned all the way up just to have some little output...
check all wiring.. its correct.
the head unit is a jensen vm9312.... only has a single sub out pre so i ran a y-splitter going to the back.
on the hu the sub output is turned up
im stumped... is the pre on the hu that low and needs a line driver or what b/c the 4125 its even at 30% and the speakers a blaring loud. i also tried running the rca's from the 4125, same output