12″ B&C Woofer CL64

Specifications

Nominal Diameter: 320 mm (12 in)
Minimum Impedance: 6.3 Ω
Continuous Power Handling: 500 W
Frequency Range: 50 Hz – 3000 Hz
Winding Material: Copper
Winding Depth: 13 mm (0.51 in)
Flux Density: 1.15 T
Nominal Impedance: 8 Ω
Nominal Power Handling: 250 W
Sensitivity: 98 dB
Voice Coil Diameter: 64 mm (2.5 in)
Former Material: Glass Fibre
Magnetic Gap Depth: 8 mm (0.31 in)
Woofer Cone Treatment: WP Waterproof Front Side

Parameters

Fs: 52 Hz
Qes: 0.32
Qts: 0.3
Sd: 522 cm² (80.9 in²)
Xmax: 4.5 mm
Mms: 55 g
Le: 1.1 mH
Re: 5.5 Ω
Qms: 4.3
Vas: 64 dm³ (2.25 ft³)
η₀: 3.4%
Xvar: 6 mm
Bl: 17.5 Tm
EBP: 163 Hz

Design

Surround Shape: Double 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: 64 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: 1.9 kg (4.2 lb)
Shipping Weight: 2.8 kg (6.17 lb)
Bolt Circle Diameter: 299 mm (11.77 in)
Depth: 133 mm (5.24 in)
Air Volume Occupied by Driver: 2 dm³ (0.07 ft³)
Shipping Units: 1 pcs
Shipping Box: 360x360x200 mm (14.17×14.17×7.87 in)

Service Kit

Recone Kit: RCK12CL648
Cone
Gasket
Centering Shims

Specification PDF