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  • bz300
bz300

BZ 300 4 OHM

30 cm (12") subwoofer featuring a coated cone and a solidly constructed metal basket. To provide long cone strokes and high power handling, the driver is equipped with an extended rear pole-plate. Due to the 50 mm voice coil the BZ 300 is suited for high power operation. Suitable for free-air-operation as well as driver for band-pass and vented enclosures.
Technical Data
Sketch
Amplitude & Impedance Frequency
Rated power 350 Watt
Maximum power 450 Watt
Nominal impedance Z 4 Ohm
Frequency response fu - 4000 Hz
(fu: Lower cut-off frequency depending on cabinet) .
Mean sound pressure level 92 dB (1W/1m)
Excursion limit 20 mm
Resonance frequency fs 36 Hz
Height of front pole-plate 8 mm
Voice coil diameter 5 cm
Height of winding 1.4 cm
Cutout diameter 28 cm
Net weight 4.5 kg
D.C. resistance Rdc 3.6 Ohm
Mechanical Q factor Qms 5.46
Electrical Q factor Qes 0.53
Total Q factor Qts 0.4
Equivalent volume Vas 129 l
Effective piston area Sd 510 cm2
Dynamically moved mass Mms 53.3 g
Force factor Bxl 9.26 T · m
Inductance of the voice coil L 0.93 mH
bz300_tz
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bz300_fs
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