B&C 12NDL76 400 Watts 8 Ohms 12" Neodymium Woofer Speaker Driver

Overview

The B&C 12NDL76 is a 12" neodymium woofer designed for professional audio applications, featuring a remarkable 800 W continuous program power capacity and a 76 mm (3 in) aluminium voice coil. With a frequency response ranging from 50 Hz to 2000 Hz, it achieves an impressive sensitivity of 100 dB, ensuring powerful and precise sound reproduction across various dynamic ranges.

This woofer is equipped with a neodymium magnet that enables a lightweight yet potent motor assembly, contributing to its overall efficiency. The ventilated voice coil gap effectively reduces power compression, maintaining consistent performance over extended use. With a resonance frequency of 50 Hz and parameters like recommended enclosure size of 42.0 dm3 (1.48 ft3) and tuning frequency of 65 Hz, the B&C 12NDL76 is optimized for delivering accurate and impactful mid-range audio.

The combination of its neodymium magnet, aluminium voice coil, and various design features makes the B&C 12NDL76 a reliable and high-performance choice for professional sound reinforcement systems.

Features

• 800 W continuous program power capacity
• 76 mm (3 in) aluminium voice coil
• 50 - 2000 Hz response
• 100 dB sensitivity
• Neodymium magnet allows a very light yet powerful motor assembly
• Ventilated voice coil gap for reduced power compression

Specifications

• Nominal Diameter: 320 mm (12.0 in)
• Nominal Impedance: 8 Ω
• Minimum Impedance: 6.2 Ω
• Nominal Power Handling: 400 W
• Continuous Power Handling: 800 W
• Sensitivity (1W/1m): 100.0 dB
• Frequency Range: 50 - 2000 Hz
• Voice Coil Diameter: 76 mm (3.0 in)
• Winding Material: Aluminium
• Former Material: Glass Fibre
• Winding Depth: 19.0 mm (0.75 in)
• Magnetic Gap Depth: 10.0 mm (0.4 in)
• Flux Density: 1.25 T

Design Features

• Surround Shape: Double Roll
• Cone Shape: Exponential
• Magnet Material: Neodymium Inside Slug
• Spider: Single
• Pole Design: Straight Pole
• Woofer Cone Treatment: None
• Recommended Enclosure: 42.0 dm^3 (1.48 ft^3)
• Recommended Tuning: 65 Hz

Parameters

• Resonance Frequency: 50 Hz
• Re: 5.3 Ω
• Qes: 0.21
• Qms: 4.2
• Qts: 0.2
• Vas: 73.0 dm^3 (2.5 ft^3)
• Sd: 522.0 cm^2 (80.9 in^2)
• η₀: 4.3%
• Xmax: ± 7.0 mm
• Xvar: ± 6.5 mm
• Mms: 53.0 g
• Bl: 20.1 Txm
• Le: 1.0 mH
• EBP: 238 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: 141 mm (5.5 in)
• Flange and Gasket Thickness: 14 mm (0.55 in)
• Air Volume Occupied by Driver: 2.5 dm^3 (0.08 ft^3)
• Net Weight: 3.9 kg (8.6 lb)
• Shipping Units: 1
• Shipping Weight: 4.8 kg (10.58 lb)
• Shipping Box Dimensions: 360x360x200 mm (14.17x14.17x7.87 in)

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