Beyma 8BR40/N, 210mm (8in) Polypropylene Cone Woofer, with 25mm Voice Coil, 91dB, 8ohm.
Technical specifications
Nominal impedance
8 Ohm
Power capacity
50 W RMS
Nominal diameter
200 mm 8 in
Sensitivity
91 dB @ 1 W/1m @ ZN
Minimum impedance
6.4 ohm
Frequency range
30-6000 Hz
Program power
100 W
Recommended enclosure volume
20 / 60 l 0.7 / 2.12 ft.³
Voice coil diameter
25.4 mm 1 in
BL factor
6.8 N/A
Moving mass
0.021 kg
Winding length
16 mm
Air gap height
6 mm
Xdamage pp
20 mm
Parameters Thiele & Small
Fs
30 Hz
Re
5.5 ohm
Qms
2.1
Qes
0.48
Qts
0.39
Vas
89.1 l
Cms
1300 µm / N
Rms
2 kg/s
Efficiency %
0.5
Sd
0.022 m²
Xmax
6.7 mm
Vd
147 cm³
Le @1 kHz
0.5 mH
Construction details
Net weight
1.35 kg 2.97 lb
Total weight
1.5 kg 3.3 lb
Magnet
Ferrite
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