B&C Speaker 6MBX44

• Sensitivity (1W, 1m, infinite baffle) SPL1W 94.5dB
• Frequency response 115 - 5000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 113Hz
• Mechanical quality factor QMS 3.90
• Electrical quality factor QES 0.34
• Total quality factor QTS 0.31

Large signal parameters

• Maximum linear excursion xmax 3.5mm
• Air volume displaced at xmax VD 46cm³
• Power handling P 200W
• Program power Pmax 400W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 5.4Ω
• Inductance (1kHz) LE 0.2mH
• VC Diameter 44mm
• Winding height HVC 10mm
• Winding material Aluminium
• Former material Glass Fibre

Magnet

• Flux density B 1.55T
• Force factor Bl 11.7N/A
• Motor constant Bl/√RE 5.03N/√W
• Air gap height HAG 6mm
• Material Neodymium Ring

Diaphragm

• Effective diameter 130mm
• Effective area SD 132cm²
• Moving mass MMS 12g
• Moving mass (without air load) MMD 10.8g
• Material Waterproof

Suspensions

• Stiffness KMS 6.14N/mm
• Compliance CMS 163µm/N
• Equivalent volume to the compliance VAS 4.1L
• Mechanical resistance RMS 2.18N·s/m

Dimensions

• Nominal diameter 6.5″
• 170mm
• Overall diameter 187mm
• Baffle cutout diameter 145mm
• Overall depth 87mm
• Flange thickness 11mm
• Mounting depth 76mm
• Volume occupied by the driver 0.6L
• Net weight 1.59kg