PA Subwoofers

dB Technologies OPERA 12 2 way active speaker 12" woofer, 600W RMS, max SPL 129 dB, asymmetrical CD horn, Dimensions: 350x642x349 mm, weight: 14.3 kg (31.53 lbs.)

QSC KS118 3600W active, ported subwoofer; high powered 18-inch woofer; 4 large, swivel casters; M20 threaded pole socket; speaker pole optional accessory.

Yamaha CW118V Single 18" Passive Subwoofer