JBL P1224 Power Series 12" subwoofer with dual 4-ohm voice coils at Crutchfield
sub jbl p1222 - YouTube
JBL P1222 のパーツレビュー | プロシードマービー(よしみ!) | みんカラ
TEST REPORT JBL P1222 - E-HiFi : Bowers Wilkins ... REPORT JBL P1222 Text and Measurements by ... control and design tests to rule out driver defect ... (Clio Win 7QC TEF 25)