• Home
  • B&C 8BG51 8" Neodymium Woofer

B&C 8BG51 8" Neodymium Woofer

B&C SpeakersPart # 294-696
Model: 8BG51
The B&C Speakers 8BG51 8" cast frame neodymium driver features a long throw 2" voice coil and rubber half-roll cone surround, which enable it to produce serious amounts of bass in compact pro loudspeaker enclosures.

Key Features

  • Rubber half-roll cone surround
  • Neodymium magnet assembly
  • Ventilated voice coil gap for reduced power compression
  • 2" copper voice coil on fiberglass former
  • Copper cap on pole piece reduces inductance and extends HF
  • 500 watts continuous program power capacity
  • 50 – 4,000 Hz response
Your Price: $151.92
+ FREE SHIPPING
MSRP: $253.20
Save $101.28 (40%)
Bulk Pricing
Back-Ordered
Get Notified When Available

We'll send you an email when B&C 8BG51 8" Neodymium Woofer is back in stock or available for preorder.

Estimated back in stock 7/18/2025
Free Shipping available on orders over $99.00 in the US. Details
60 Day No Hassle Return Policy

Overview

B&C 8BG51 8" Neodymium Woofer

B&C's 8BG51 8" neodymium woofer is fitted with an optimized paper cone and rubber half-roll surround, and strikes a fine balance between bass output and overall efficiency. The 8BG51's ventilated voice coil gap ensures long term power handling and reduced power compression, and a copper cap on the pole piece reduces high frequency-degrading inductance. Highly recommended for compact 2-way speaker systems.

Product Details

BrandB&C Speakers
Model8BG51
Part Number294-696
UPC844632086236
Unit of MeasureEach
Weight4.85

Product Specifications

Nominal Diameter8"
Bolt Circle Diameter8.3
Power Handling (RMS)500 Watts
Impedance
Frequency Response50 to 4,000Hz
Sensitivity92dB 2.83V/1m
Voice Coil Diameter2"

Thiele-Small Parameters

Resonant Frequency (Fs)52Hz
DC Resistance (Re)5.1Ω
Voice Coil Inductance (Le)0.5mH
Mechanical Q (Qms)12.3
Electromagnetic Q (Qes)0.42
Total Q (Qts)0.4
Compliance Equivalent Volume (Vas)0.63ft³
BL Product (BL)11.8T·m
Diaphragm Mass Inc. Airload (Mms)35g
Maximum Linear Excursion (Xmax)6.5mm
Surface Area of Cone (Sd)220cm²

Materials of Construction

Cone MaterialPaper
Surround MaterialRubber
Voice Coil Wire MaterialCopper
Voice Coil FormerFiberglass
Basket / Frame MaterialCast Aluminum
Magnet MaterialNeodymium

Mounting Information

Overall Outside Diameter8.8"
Baffle Cutout Diameter7.4"
Depth3.5"
# Mounting Holes8

Parts Express Staff Recommended Enclosure Volume

Sealed Volume0.3ft³
Sealed F3103.1Hz
Vented Volume0.63ft³
Vented F351.2Hz

Specifications

Q&A

Reviews

Manuals & Resources

California Prop 65

WARNING: Cancer and Reproductive Harm

www.P65Warnings.ca.gov