B&C Zvučnik 8FG51

B&C Zvučnik 8FG51 :

B&C 8FG51 8" 250W 8 Ohm Loudspeaker Driver

500 W continuous program power capacity
51 mm (2 in) copper voice coil
50 - 4000 Hz response
93 dB sensitivity
Shorting copper cap for extended HF response
Ventilated voice coil gap for reduced power compression

Specifications:

Nominal diameter: 200 mm (8.0 in)
Nominal impedance: 8 Ω
Minimum impedance: 6.5 Ω
Nominal power handling *: 250 W
Continuous power handling *: 500 W
Sensitivity (1W/1m) *: 93.0 dB
Frequency range: 50 - 4000 Hz
Voice coil diameter: 51 mm (2.0 in)
Winding material: Copper
Former material: Glass Fibre
Winding depth: 17 mm (0.65 in)
Magnetic gap depth: 8 mm (0.31 in)
Flux density: 1.15 T

Design

Surround shape: Roll
Cone shape: Exponential
Magnet material: Ceramic
Spider: Single
Pole design: T-Pole
Woofer cone treatment: WP Waterproof Front Side
Recommended enclosure: 17.0 dm3 (0.6 ft3)
Recommended tuning: 52 Hz

Parameters

Fs: 49 Hz
Re: 5 Ω
Qes: 0.34
Qms: 9.0
Qts: 0.32
Vas: 20.0 dm3 (0.71 ft3)
Sd: 220.0 cm2 (34.1 in2)
η₀: 0.7 %
Xmax: 6.5 mm
Xvar: 8.0 mm
Mms: 35 g
Bl: 12.9 Txm
Le: 0.5 mH
EBP: 144 Hz

Mounting And Shipping Info

Overall diameter: 225 mm (8.8 in)
Bolt circle diameter: 210 mm (8.3 in)
Baffle cutout diameter: 187.0 mm (7.4 in)
Depth: 93 mm (3.7 in)
Flange and gasket thickness: 11 mm (0.43 in)
Air volume occupied by driver: 1.5 dm3 (0.05 ft3)
Net weight: 3.5 kg (7.7 lb)
Shipping weight: 3.9 kg (8.6 lb)
Shipping box: 300x160x180 mm (11.8x6.3x7.1 in)