KSW-1043D4/ KSW-1243D4
Aluminium basket Subwoofer/Non-Pressed Paper Cone
Foam surround/120 OZ Ferrite Magnet/3"4-Layers Voice coil

KSW-1043D4 
Description:10"subwoofer
RMS Power:1000w                   
Max Power:2000w
Impedance:4×4ΩVoice coil

KSW-1243D4 
Description:12"subwoofer
RMS Power:1000w
Max Power:2000w
Impedance:4×4ΩVoice coil