5″ B&C Woofer NDL38

Specifications

Nominal Diameter: 127 mm (5 in)
Minimum Impedance: 6.3 Ω
Continuous Power Handling: 180 W
Frequency Range: 80 Hz – 7000 Hz
Winding Material: Aluminium
Winding Depth: 10 mm (0.37 in)
Flux Density: 1.25 T
Nominal Impedance: 8 Ω
Nominal Power Handling: 90 W
Sensitivity: 91 dB
Voice Coil Diameter: 38 mm (1.5 in)
Former Material: Glass Fibre
Magnetic Gap Depth: 6 mm (0.24 in)
Woofer Cone Treatment: WP Waterproof Front Side

Parameters

Fs: 80 Hz
Qes: 0.37
Qts: 0.36
Sd: 95 cm² (14.73 in²)
Xmax: 3.5 mm
Mms: 11 g
Le: 0.64 mH
Re: 5.5 Ω
Qms: 9.2
Vas: 4.3 dm³ (0.15 ft³)
η₀: 0.55%
Xvar: 4 mm
Bl: 9.2 Tm
EBP: 216 Hz

Design

Surround Shape: Roll
Magnet Material: Neodymium Ring
Pole Design: Straight Pole
Recommended Enclosure: 5 dm³ (0.18 ft³)
Cone Shape: Exponential
Spider: Single
Woofer Cone Treatment: WP Waterproof Front Side
Recommended Tuning: 80 Hz

Mounting and Shipping Info

Overall Diameter: 155 mm (6.1 in)
Baffle Cutout Diameter: 122 mm (4.8 in)
Flange and Gasket Thickness: 9 mm (0.35 in)
Net Weight: 0.94 kg (2.07 lb)
Shipping Weight: 1.14 kg (2.51 lb)
Bolt Circle Diameter: 142 mm (5.6 in)
Depth: 75 mm (2.95 in)
Air Volume Occupied by Driver: 0.35 dm³ (0.01 ft³)
Shipping Units: 1 pcs
Shipping Box: 210x210x125 mm (8.27×8.27×4.92 in)

Service Kit

Recone Kit: RCK005NDL388
Cone, Gasket, Centering Shims

Specification PDF