B&C 8" 250 Watt 8 Ohm Woofer Speaker - 8FG51-8

Overview

The B&C 8FG51-8 is an 8" woofer speaker designed to deliver high-quality sound in professional audio applications. With a continuous program power capacity of 500 W and a 51 mm (2 in) copper voice coil, this speaker offers a powerful and clear audio experience. Its frequency response spans from 50 Hz to 4000 Hz, ensuring accurate sound reproduction across various frequencies.

The speaker is equipped with a shorting copper cap for extended high-frequency (HF) response and a ventilated voice coil gap, reducing power compression for consistent performance over time. With a sensitivity of 93 dB, the B&C 8FG51-8 efficiently converts input power into sound output. Its resonance frequency is 49 Hz, and it's optimized with parameters like a recommended enclosure size of 17.0 dm3 (0.6 ft3) and a tuning frequency of 52 Hz for effective sound reproduction.

Engineered with durable materials and advanced design, the B&C 8FG51-8 is a reliable choice for professional audio setups that demand clarity, power, and reliability.

Features

• 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: 17.0 mm (0.65 in)
• Magnetic Gap Depth: 8.0 mm (0.31 in)
• Flux Density: 1.15 T

Design Features

• Surround Shape: Roll
• Cone Shape: Exponential
• Magnet Material: Ferrite Ring
• Spider: Single
• Pole Design: T-Pole
• Woofer Cone Treatment: WP Waterproof Front Side
• Recommended Enclosure: 17.0 dm^3 (0.6 ft^3)
• Recommended Tuning: 52 Hz

Parameters

• Resonance Frequency: 49 Hz
• Re: 5.1 Ω
• Qes: 0.34
• Qms: 9.0
• Qts: 0.32
• Vas: 20.0 dm^3 (0.71 ft^3)
• Sd: 220.0 cm^2 (34.1 in^2)
• η₀: 0.7%
• Xmax: ± 6.5 mm
• Xvar: ± 8.0 mm
• Mms: 35.0 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 dm^3 (0.05 ft^3)
• Net Weight: 3.5 kg (7.7 lb)
• Shipping Units: 1
• Shipping Weight: 3.95 kg (8.71 lb)
• Shipping Box Dimensions: 255x255x150 mm (10.04x10.04x5.91 in)

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