Robpevfai
Junior Member
I got an Image Dynamics ID12 D2 V.3 subwoofer in a 1.5 cuft sealed box. Bridged on a 4 channel precision power ppi 900.4. The sub just is not deep or loud and can not figure out why it isnt. The amp has a switch for stereo or 4 channel but the sub dosnt work in 4 channel only in stereo, but its still not loud. More bass comes from my 6.5. If you need any more information let me know. Thanks
