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  • B&C 12MH32 12" Midbass Driver 8 Ohm

B&C 12MH32 12" Midbass Driver 8 Ohm

SKU:
$314.66
$188.79
$188.79
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Features

  • 800 W continuous program power capacity
  • 76 mm (3 in) copper voice coil
  • 50 - 3000 Hz response
  • 101 dB sensitivity
  • Aluminium demodulating ring allows a very low distortion figure



Specifications

  • Nominal Diameter: 320 mm (12.0 in)
  • Nominal Impedance: 8 Ω
  • Minimum Impedance: 6.5 Ω
  • Nominal Power Handling1: 400 W
  • Continuous Power Handling2: 800 W
  • Sensitivity3: 101.0 dB
  • Frequency Range: 50 - 3000 Hz
  • Voice Coil Diameter: 76 mm (3.0 in)
  • Winding Material: Copper
  • Former Material: Glass Fibre
  • Winding Depth: 14.0 mm (0.55 in)
  • Magnetic Gap Depth: 8.0 mm (0.31 in)
  • Flux Density: 1.4 T



Design

  • Surround Shape: Double Roll
  • Cone Shape: Radial
  • Magnet Material: Ferrite
  • Spider: Single
  • Pole Design: T-Pole
  • Woofer Cone Treatment: None



Parameters4

  • Resonance Frequency: 53 Hz
  • Re: 5.2 Ω
  • Qes: 0.2 
  • Qms: 7.2 
  • Qts: 0.19 
  • Vas: 63.0 dm3 (2.2 ft3)
  • Sd: 522.0 cm2 (80.9 in2)
  • η₀: 4.8 %
  • Xmax: 5.0 mm
  • Xvar: 7.0 mm
  • Mms: 54.0 g
  • Bl: 22.3 Txm
  • Le: 0.83 mH
  • EBP: 265 Hz



Mounting and Shipping Info

  • Overall Diameter: 316 mm (12.4 in)
  • Bolt Circle Diameter: 296 mm (11.6 in)
  • Baffle Cutout Diameter: 282.0 mm (11.1 in)
  • Depth: 133 mm (5.24 in)
  • Flange and Gasket Thickness: 12 mm (0.47 in)
  • Air Volume Occupied by Driver: 3.3 dm3 (0.12 ft3)
  • Net Weight: 7.6 kg (16.7 lb)
  • Shipping Units: 1
  • Shipping Weight: 8.5 kg (18.74 lb)
  • Shipping Box: 360 x 360 x 200 mm (14.17 x 14.17 x 7.87 in)



Service Kit

  • Recone kit: RCK012MH328
  • Discover more


1 2 hours test made with continuous pink noise signal within the range Fs-10Fs. Power calculated on rated minumum impedance. Loudspeaker in free air.

2 Power on Continuous Program is defined as 3 dB greater than the Nominal rating.

3 Applied RMS Voltage is set to 2.83 V for 8 ohms Nominal Impedance. 

Thiele-Small parameters are measured after a high level 20 Hz sine wave preconditioning test.


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