Originally Posted by BenzSPL

Hey All,

Thanks for the responses.

I guess the issue is the box? But I find the strange that the subs don't even move when the low notes play?

I heard that 2001 S-Class Mercedes have a microphone within the cabin that automatically adjusts the volume when external sounds play, could this be the issue?

The subs won't even move at low notes, even at ANY setting the subsonic filter is set to, almost like the subsonic filter is broken??

Originally Posted by BenzSPL

Hey All,

My system consists of a 1600w Audiophonics amp, 2 12" Pionner TS-W304R's and a ported pre-fab box.

For some reason, when low notes from a song play on my subs the subs won't move and don't produce that low bass sound even though my mirrors flex like crazy. The low bass sounds hollow and very "airy"

I find this strange because the mid-high bass notes are much louder and can be felt more, but my mirrors barely flex when there are mid-high notes are playing.

System currently sounds great on the mid-high bass notes, and can't hear the low notes I am looking for. Can't be the subsonic filter because it sounds the same even after adjusting it.

Any thoughts?

Much thanks in advance!



One last thing, how do I bridge two single coil subs to a amp at a lower impedance?