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B&C 8NDL51 8" Neodymium Woofer

B&C Speakers
Part #294-649

B&C 8NDL51 8" Neodymium Woofer

B&C Speakers
Part #294-649  
Model: 8NDL51
B&C's 8NDL51 8" speaker offers the efficiency and smooth response of a midrange driver and combines it with the Xmax capabilities of a woofer, making it perfect for a variety of compact pro PA loudspeaker applications.
Key Features
  • Great for line arrays and horn loading
  • Neodymium magnet assembly
  • Ventilated voice coil gap for reduced power compression
  • Inductance-reducing copper cap on pole piece extends HF response
  • 2" copper voice coil on polyimide former
  • 400 watts continuous program power capacity
  • 65 – 3,000 Hz response
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Overview

B&C 8NDL51 8" Neodymium Woofer

The B&C Speakers 8NDL51 is an efficient and lightweight cast frame 8" neodymium driver. Its ventilated voice coil gap ensures long term power handling and reduced power compression, and a copper cap on the pole piece reduces inductance and extends high frequency response. The 8NDL51 is highly recommended for compact 2-way speaker systems or as the midbass/midrange element in high-output 3-way and 4-way designs.

 

Product Details

BrandB&C Speakers
Model8NDL51
Part Number294-649
UPC844632086052
Unit of MeasureEach
Weight4.8

Product Specifications

Nominal Diameter8"
Bolt Circle Diameter8.3
Power Handling (RMS)400 Watts
Impedance
Frequency Response65 to 3,000Hz
Sensitivity94dB 2.83V/1m
Voice Coil Diameter2"

Thiele-Small Parameters

Resonant Frequency (Fs)66Hz
DC Resistance (Re)5.3Ω
Voice Coil Inductance (Le)0.5mH
Mechanical Q (Qms)3.6
Electromagnetic Q (Qes)0.41
Total Q (Qts)0.37
Compliance Equivalent Volume (Vas)0.5ft³
BL Product (BL)12.4T·m
Diaphragm Mass Inc. Airload (Mms)28g
Maximum Linear Excursion (Xmax)7mm
Surface Area of Cone (Sd)220cm²

Materials of Construction

Cone MaterialPaper
Surround MaterialCloth
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 F3145.6Hz
Vented Volume0.63ft³
Vented F361.2Hz

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California Prop 65

WARNING: Cancer and Reproductive Harm

www.P65Warnings.ca.gov