The SB Acoustics SB20PFCR30-4 is an 8 inch 4 ohm woofer bass speaker featuring a paper / pulp cone, a vented reinforced plastic chassis and an optimised motor system. A relatively low priced woofer that gives an excellent cost to performance ratio.
Also available in 8 ohms: SB20PFCR30-8.
Vented reinforced plastic chassis.
Proprietary cone material with natural fibers made in-house.
Soft low damping rubber surround for improved transient response.
Large spider for improved linearity.
Optimised motor system.
Vented coil former for low compression.
Non-resonant long life lead wires.
Resonant frequency (fs)
Nominal impedance (Zn)
Mechanical Q factor (Qms)
DC resistance (Re)
Electrical Q factor (Qes)
Max power handling
Total Q factor (Qts)
Equivalent volume (Vas)
Here's the full datasheet:
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