We are currently very busy - all enquiries by email only please.
We are currently very busy - all enquiries by email only please.
DRIVE UNITS BY MANUFACTURER:
SB12NRX25-4
UK STOCK ITEM
The SB Acoustics SB12NRX25-4 is a 4 inch 4 ohm midwoofer featuring a Norex cone. Norex is a proprietary paper based material comprised of wood pulp and selected natural fibres blended for an optimally strong but lightweight cone that gives detailed sound with good midrange extension.
Also available in 8 ohms: SB12NRX25-8.
Resonant frequency (fs) | 55 Hz | Nominal impedance (Zn) | 4 Ω |
Mechanical Q factor (Qms) | 3.2 |
DC resistance (Re) | 3.1 Ω |
Electrical Q factor (Qes) | 0.46 |
Max power handling | 30 W |
Total Q factor (Qts) | 0.40 |
Sensitivity (2.83V/1m) |
87.5dB |
Equivalent volume (Vas) | 5.6L | Chassis diameter |
123mm |
Friendly technical support
40+ years in the trade
UK family run business
Excellent customer service
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