BGS 40 - 8 Ohm

40 cm (15") woofer with hard cone suspension for P.A. systems, stage monitors and musicians speakers. Solid aluminium die-cast basket for front- or rear baffle mounting. High efficiency and high power handling due to large magnetic drive with vent and 65 mm voice-coil.

No longer available.

Volume/Principle BR-Channel fb
70 l/bass reflex 4 x BR 15.34 (length 10 cm) 54 Hz
2 x BR 25.50 (length 7 cm)
100 l/bass reflex 4 x BR 15.34 (length 10 cm) 46 Hz
2 x BR 25.50 (length 7 cm)

Technical Data

Rated power
200 W
Maximum power
300 W
Nominal impedance Z
8 Ohm
Frequency response
fu–4000 Hz
(fu: Lower cut-off frequency depending on cabinet)
.
Mean sound pressure level
98 dB (1 W/1 m)
Excursion limit
+/−8 mm
Resonance frequency fs
40 Hz
Magnetic induction
1.1 T
Magnetic flux
1800 µWb
Height of front pole-plate
8 mm
Voice coil diameter
65 mm
Height of winding
12 mm
Cutout diameter
359 mm
Net weight
5.4 kg
D.C. resistance Rdc
6.5 Ohm
Mechanical Q factor Qms
3.13
Electrical Q factor Qes
0.49
Total Q factor Qts
0.42
Equivalent volume Vas
263 l
Effective piston area Sd
855 cm²
Dynamically moved mass Mms
80 g
Force factor Bxl
16.8 Tm
Inductance of the voice coil L
1.55 mH
Frequency- and impedance response