B&C 8MDN51 8" Neodymium Woofer
B&C's 8MDN51 8" woofer is an efficient and lightweight cast frame neodymium professional driver. Its ventilated voice coil gap ensures long term power handling and reduced power compression. Although the 8MDN51 will provide great results when loaded into direct radiating designs, it is also ideally suited for horn-loaded speaker systems.
Highly recommended for compact 2-way speaker systems, the B&C Speakers 8MDN51 8" driver also performs well as the midbass / midrange element in high-output 3-way and 4-way designs, including line arrays.
Key Features
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Great for line arrays and horn loading
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Neodymium ring magnet assembly
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Ventilated voice coil gap for reduced power compression
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2" aluminum voice coil on polyimide former
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400 watts continuous program power capacity
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70 – 4,000 Hz response
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97 dB 1W/1m sensitivity
Product Specifications
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Nominal Diameter 8"
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Bolt Circle Diameter 8.3
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Moving Mass Of Diaphragm (Mmd) 23
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Power Handling (RMS) 200 Watts
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Power Handling (MAX) 400 Watts
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Impedance 8Ω
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Frequency Response 70 to 4,000Hz
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Sensitivity 97dB 2.83V/1m
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Voice Coil Diameter 2"
Thiele-Small Parameters
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Resonant Frequency (Fs) 70Hz
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DC Resistance (Re) 5.1Ω
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Voice Coil Inductance (Le) 0.8mH
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Mechanical Q (Qms) 3.7
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Electromagnetic Q (Qes) 0.21
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Total Q (Qts) 0.2
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Compliance Equivalent Volume (Vas) 0.6ft³
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BL Product (BL) 15.3T·m
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Maximum Linear Excursion (Xmax) 6mm
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Surface Area of Cone (Sd) 220cm²
Materials of Construction
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Cone Material Paper
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Surround Material Foam
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Voice Coil Wire Material Aluminum
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Voice Coil Former Kapton® / Polyimide
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Basket / Frame Material Cast Aluminum
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Magnet Material Neodymium
Mounting Information
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Overall Outside Diameter 8.8"
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Baffle Cutout Diameter 7.4"
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Depth 3.74"
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# Mounting Holes 8
Optimum Cabinet Size (determined using BassBox 6 Pro High Fidelity suggestion)
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Sealed Volume 0.03ft³
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Sealed F 3299Hz
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Vented Volume 0.07ft³
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Vented F 3199Hz
