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B&C 12HCX76 12" Neodymium Coaxial Speaker 60 x 40 Degree

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B&C Speakers
Part #294-577

B&C 12HCX76 12" Neodymium Coaxial Speaker 60 x 40 Degree

B&C Speakers
Part #294-577  
Model: 12HCX76
5 Questions, 5 Answers or
Suitable for situations that demand accuracy, controlled dispersion, and high SPL from the smallest possible enclosure, the B&C 12HCX76 12" coaxial speaker brings studio monitor performance to portable and installed PA applications.
Key Features
  • Transparent, accurate point source transducer
  • Efficient, low-distortion coaxial design
  • Circular HF waveguide provides controlled, high directivity output
  • Strong, lightweight neodymium integrated magnetic structure
  • Woofer rated at 700 watt continuous program power handling
  • Cloth multi-roll surround, light moving mass, and exponential cone geometry
  • Titanium diaphragm high frequency driver with polyester surround
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Overview

B&C 12HCX76 12" Neodymium Coaxial Speaker 60 x 40 Degree

A single, integrated neodymium magnetic assembly is shared by the B&C 12HCX76 12" coaxial speaker's low and high frequency driver sections. When deployed, a 12HCX76 is capable of accurate pattern control and excellent projection, thanks to its carefully engineered waveguide coupled to the large-format high frequency driver.

The 12HCX76's high efficiency and accuracy make it especially suitable for compact bass reflex enclosures, stage monitors, and long-throw ceiling applications like hotel ballroom installations. Crossover not included. Recommended 12 dB/octave crossover frequency: 1,200 Hz.

B&C cone loudspeaker models range from 6.5" to 21", each built on a sturdy die-cast aluminum or stamped steel chassis for maximum mechanical reliability. Voice coils are wound in two layers inside-outside around polyimide or fiberglass formers, giving them the ability to withstand very high thermal stress. Loudspeaker cones are treated with a special stiffening finish, resulting in excellent rigidity and avoiding break-up problems when driven to full power. 

Many B&C speakers include carefully balanced copper or aluminum rings that minimize variations in the magnetic field during operation, reducing distortion and increasing accuracy in reproduced sound. Most models also feature a specially designed cooling path through the magnet assembly to further increase power handling and lower power compression. The NDL, NW, HPL, and NCX models use powerful neodymium magnets that offer a weight reduction of up to 60%, and special chassis designs for improved cooling. 

The design and optimization are performed with up-to-date Finite Element Analysis (FEA) to obtain the best combination of efficiency, linearity, and thermal exchange. Ongoing research and refining of the theoretical models and a constant updating of the measurement methods and instruments allow B&C to further increase excursion capabilities, consistency, and overall sound quality.

Product Details

BrandB&C Speakers
Model12HCX76
Part Number294-577
UPC844632086168
Unit of MeasureEach
Weight14.45

Product Specifications

Nominal Diameter12"
Bolt Circle Diameter11.7
Power Handling (RMS)350 Watts
Power Handling (MAX)700 Watts
Impedance
Frequency Response45 to 18,000Hz
Sensitivity107dB 2.83V/1m
Voice Coil Diameter3"

Thiele-Small Parameters

Resonant Frequency (Fs)42Hz
DC Resistance (Re)
Voice Coil Inductance (Le)0.8mH
Mechanical Q (Qms)8
Electromagnetic Q (Qes)0.2
Total Q (Qts)0.19
Compliance Equivalent Volume (Vas)4.2ft³
BL Product (BL)17.6T·m
Diaphragm Mass Inc. Airload (Mms)47g
Maximum Linear Excursion (Xmax)4mm
Surface Area of Cone (Sd)522cm²

Materials of Construction

Cone MaterialPaper
Voice Coil Wire MaterialCopper
Magnet MaterialNeodymium

Mounting Information

Overall Outside Diameter12.4"
Baffle Cutout Diameter11.14"
Depth6.6"
# Mounting Holes8

Parts Express Staff Recommended Enclosure Volume

Sealed Volume0.5ft³
Sealed F3182.3Hz
Vented Volume1.5ft³
Vented F362.7Hz

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