W 300 - 8 Ohm

Art. No. 9069

30 cm (12") woofer with air-dried cone and pressure vented pole piece. Can be fitted at front or rear. Excellent value for money coupled with very good power-handling capabilities. Particularly suitable as a replacement for HiFi speakers.

Recommended cabinets:

Volume/Principle BR-Channel fb fc/QTC 70 l/closed - - 56 Hz/0,8 100 l/closed - - 49 Hz/0,71 150 l/closed - - 43 Hz/0,62 70 l/bass reflex BR 25.50 (length 7 cm) 36 Hz - 100 l/bass reflex BR 25.50 (length 20 cm) 32 Hz - 150 l/bass reflex 2 x BR 15.34 (length 7 cm) 29 Hz -

Volume/Principle BR-Channel fb fc/QTC
70 l/closed - - 62 Hz/0,87
100 l/closed - - 55 Hz/0,77
150 l/closed - - 48 Hz/0,68
70 l/bass reflex BR 25.50(length 7 cm) 36 Hz -
100 l/bass reflex BR 25.50 (length 20 cm) 32 Hz -
150 l/bass reflex 2 x BR 15.34(length 7 cm) 29 Hz -

Technical Data

Rated power
120 W
Maximum power
180 W
Nominal impedance Z
8 Ohm
Frequency response
fu–2500 Hz
(fu: Lower cut-off frequency depending on cabinet)
.
Mean sound pressure level
91 dB (1 W/1 m)
Excursion limit
+/−14 mm
Resonance frequency fs
32 Hz
Magnetic induction
0.95 T
Magnetic flux
1250 µWb
Height of front pole-plate
8 mm
Voice coil diameter
50 mm
Height of winding
18.5 mm
Cutout diameter
280 mm
Net weight
2.8 kg
D.C. resistance Rdc
6.6 Ohm
Mechanical Q factor Qms
2.68
Electrical Q factor Qes
0.54
Total Q factor Qts
0.45
Equivalent volume Vas
190 l
Effective piston area Sd
490 cm²
Dynamically moved mass Mms
43 g
Force factor Bxl
9.4 Tm
Inductance of the voice coil L
1.8 mH
Frequency- and impedance response