S318B
S328B
(Discontinued) S18
(Discontinued) S218
B12S Single 12-inch ultra-low frequency speaker (DSP Active/Passive)
B15S Single 15-inch ultra-low frequency speaker (DSP Active/Passive)
B18S Single 18-inch ultra-low frequency speaker (DSP Active/Passive)
H12DSP single 12-inch ultra-low frequency speaker (DSP active)
H15DSP Single 15-inch Ultra-Low Speaker (DSP Active)
H18DSP Single 18-inch Ultra-Low Speaker (DSP Active)
