B&C Zvučnik 12NW76

B&C 12NW76 12" 500W Low Frequency Driver with Neodymium Magnet 8 Ohms (Faston)

Specifications

Nominal diameter 320 mm (12.0 in)
Nominal impedance 8 ohms
Minimum impedance 6.9 ohms
Nominal power handling 500 W
Continuous power handling 1000 W
Sensitivity (1W/1m) 99.0 dB
Frequency range 40 - 2000 Hz
Voice coil diameter 76 mm (3.0 in)
Winding material Copper
Former material Glass Fibre
Winding depth 19 mm (0.75 in)
Magnetic gap depth 11 mm (0.43 in)
Flux density 1.3 T

Design

Surround shape Triple Roll
Cone shape Exponential
Magnet material Neodymium Ring
Spider Single
Pole design T-Pole
Woofer cone treatment WP Waterproof Front Side
Recommended enclosure 50.0 dm3 (1.77 ft3)
Recommended tuning 60 Hz

Parameters

Fs 40 Hz
Re 5.3 ohms
Qes 0.17
Qms 3.7
Qts 0.16
Vas 76.0 dm3 (2.7 ft3)
Sd 522.0 cm2 (80.9 in2)
Reference efficiency 2.8 %
Xmax 8.0 mm
Xvar 10.0 mm
Mms 77 g
Bl 25.5 Txm
Le 1.25 mH
EBP 235 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 147 mm (5.8 in)
Flange and gasket thickness 14 mm (0.55 in)
Air volume occupied by driver 2.5 dm3 (0.08 ft3)
Net weight 4.9 kg (10.8 lb)
Shipping weight 5.6 kg (12.3 lb)
Shipping box 340x340x170 mm (13.4x13.4x6.7 in)