JBL P1224 Power Series 12" subwoofer with dual 4-ohm voice coils at Crutchfield
Pyle 12' Car Audio Speaker Subwoofer - 1600 Watt High Power Bass Surround Sound Stereo Subwoofer Speaker System - Non Press Paper Cone, 90 dB, 40 Ohm, 60 oz Magnet, 2 Inch 4 Layer Voice Coil -PLPW12D
JBL 1600w, Subwoofer - dba.dk - Køb og Salg af Nyt og Brugt
Amazon.com: JBL Dual 12" Car Audio Ported Enclosure : Electronics
Speaker / SubWoofers / JBL 1600 WATTS 38 CM SUBWOOFER at sahibinden.com - 1080201216
JBL JRX 218S, passive subwoofer 18", 350Watt, 4Ohm | MUSIC STORE professional