12″ B&C Woofer CL76

Specifications

Nominal Diameter: 320 mm (12 in)
Minimum Impedance: 6.5 Ω
Continuous Power Handling: 700 W
Frequency Range: 45 Hz – 3000 Hz
Winding Material: Copper
Winding Depth: 17 mm (0.67 in)
Flux Density: 1.05 T
Nominal Impedance: 8 Ω
Nominal Power Handling: 350 W
Sensitivity: 98.5 dB
Voice Coil Diameter: 76 mm (3 in)
Former Material: Glass Fibre
Magnetic Gap Depth: 11 mm (0.43 in)
Woofer Cone Treatment: WP Waterproof Front Side

Parameters

Fs: 48 Hz
Qes: 0.22
Qts: 0.21
Sd: 522 cm² (80.9 in²)
Xmax: 6 mm
Mms: 70 g
Le: 1.5 mH
Re: 5.2 Ω
Qms: 4.8
Vas: 59 dm³ (2.1 ft³)
η₀: 2.9%
Xvar: 8.5 mm
Bl: 22.4 Tm
EBP: 218 Hz

Design

Surround Shape: Triple Roll
Magnet Material: Neodymium Inside Slug
Pole Design: Straight Pole
Recommended Enclosure: 40 dm³ (1.41 ft³)
Cone Shape: Exponential
Spider: Single
Woofer Cone Treatment: WP Waterproof Front Side
Recommended Tuning: 60 Hz

Mounting and Shipping Info

Overall Diameter: 313 mm (12.32 in)
Baffle Cutout Diameter: 282 mm (11.1 in)
Flange and Gasket Thickness: 9 mm (0.35 in)
Net Weight: 3.35 kg (7.39 lb)
Shipping Weight: 4.25 kg (9.37 lb)
Bolt Circle Diameter: 299 mm (11.77 in)
Depth: 142 mm (5.59 in)
Air Volume Occupied by Driver: 2.3 dm³ (0.08 ft³)
Shipping Units: 1 pcs
Shipping Box: 360x360x200 mm (14.17×14.17×7.87 in)

Service Kit

Recone Kit: RCK12CL768
Cone
Gasket
Centering Shims

Specification PDF