Aluminium basket Subwoofer/Non－Pressed Paper Cone
Foam surround/180 OZ Ferrite Magnet/3"4-Layers Voice coil

KSW-1031D4
Description:10"subwoofer
RMS Power:1500w
Max Power:3000w
Impedance:4×4ΩVoice coil

KSW-1231D4
Description:12"subwoofer
RMS Power:1500w
Max Power:3000w
Impedance:4×4ΩVoice coil

KSW-1531D4
Description:15"subwoofer
RMS Power:1500w
Max Power:3000w
Impedance:4×4ΩVoice coil