B&C Zvučnik 12FW64

B&C Zvučnik 12FW64 :

B&C 12FW64 12" 250W 8 Ohm Loudspeaker Driver

Specifications:

Nominal diameter 320 mm (12.0 in)
Nominal impedance 8 ohms
Minimum impedance 6.7 ohms
Nominal power handling 250 W
Continuous power handling 500 W
Sensitivity (1W/1m) 98.0 dB
Frequency range 55 - 3000 Hz
Voice coil diameter 64 mm (2.5 in)
Winding material Aluminium
Former material Glass Fibre
Winding depth 14 mm (0.55 in)
Magnetic gap depth 8 mm (0.31 in)
Flux density 1.3 T

Design:

Surround shape Double Roll
Cone shape Exponential
Magnet material Ferrite
Spider Single
Pole design T-Pole
Woofer cone treatment WP Waterproof Front Side
Recommended enclosure 40.0 dm3 (1.4 ft3) Recommended tuning 55 Hz

Parameters:

Fs 55 Hz
Re 5.2 ohms
Qes 0.32
Qms 3.5
Qts 0.29
Vas 64.0 dm3 (2.26 ft3)
Sd 522.0 cm2 (80.9 in2)
Reference efficiency 3.6 %
Xmax 5.0 mm
Xvar 5.0 mm
Mms 47 g
Bl 15.5 Txm
Le 1.0 mH
EBP 171 Hz

Mounting And Shipping Info:

Overall diameter 315 mm (12.4 in)
Bolt circle diameter 298 mm (11.7 in)
Baffle cutout diameter 283.0 mm (11.1 in)
Depth 136 mm (5.35 in)
Flange and gasket thickness 13 mm (0.51 in)
Air volume occupied by driver 3.0 dm3 (0.1 ft3)
Net weight 5.6 kg (12.3 lb)
Shipping weight 6.2 kg (13.7 lb)
Shipping box 340x340x170 mm (13.4x13.4x6.7 in)
Service Kit RCK12FW648