The SB Acoustics SB15MFC30-4 is a 5 inch 4 ohm midwoofer featuring a polypropylene cone and a vented cast alloy chassis. Excellent extended response and very easy to work with. One of our favourite drive units !
Also available in 8 ohms: SB15MFC30-8.
Vented cast aluminium chassis for optimum strength and low compression.
Mineral filled PP-cone made in-house.
Soft low damping rubber surround for improved transient response.
Non-conducting fibre glass voice coil former for minimum damping.
Extended copper sleeve on pole piece for low inductance and low distortion.
CCAW voice coil for reduced moving mass.
Long life silver lead wires.
Vented pole piece for reduced compression.
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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