B&C 8 PS 21

400 W continuous program power capacity
50 mm '2 in' copper voice coil
70 – 3000 Hz response
94 dB sensitivity
Shorting copper cap for extended HF response

Nominal Diameter - 200 '8' mm 'in'
Nominal Impedance - 8 Ohm
Minimum Impedence - 7 Ohm
Nominal Power Handling - 200 W
Continuous Power Handling - 400 W
Sensitivity '1W/1m' - 94 dB
Frequency Range - 70 -3000 Hz
Voice Coil Diameter - 50 '2' mm 'in'
Winding Material - Copper
Former Material - Kapton
Winding Depth - 16 '5/8' mm 'in'
Magnetic Gap Depth - 8 '5/16' mm 'in'
Flux Density - 1.1 T

Fs - 73 Hz
Re - 5.4 Ohm
Qes - 0.36
Qms - 4.2
Qts - 0.33
Vas - 14 '0.5' dm3 'ft3'
Sd 220 - '34.1' cm2 'in2'
Eta Zero - 1.5 %
Xmax - +/- 5 mm
Xvar - +/- 4.5 mm
Mms - 23 g
Bl - 12.6 Txm
Le - 0.5 mH