BG 30 NG 8 OHM

30 cm (12") woofer with hard cone suspension for keyboard speakers, subwoofers and stage monitors. High efficiency and suitable for sealed and vented systems. High power handling due to magnet vent, capton voice coil carrier and stiff fabric surround.

No longer available.

Technical Data

Rated power
150 Watt
Maximum power
250 Watt
Nominal impedance Z
8 Ohm
Frequency response
fu - 5000 Hz
(fu: Lower cut-off frequency depending on cabinet)
Mean sound pressure level
95 dB (1W/1m)
Excursion limit
14 mm
Resonance frequency fs
50 Hz
Magnetic induction
1.1 Tesla
Magnetic flux
1400 µ Weber
Height of front pole-plate
8 mm
Voice coil diameter
5 cm
Height of winding
1.4 cm
Cutout diameter
28 cm
Net weight
3 kg
D.C. resistance Rdc
6.5 Ohm
Mechanical Q factor Qms
Electrical Q factor Qes
Total Q factor Qts
Equivalent volume Vas
89 l
Effective piston area Sd
511 cm2
Dynamically moved mass Mms
40 g
Force factor Bxl
10.8 T · m
Inductance of the voice coil L
1.6 mH
Frequency- and impedance response
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