B&C Speaker 6PS44

• Sensitivity (1W, 1m, infinite baffle) SPL1W 90.2dB
• Frequency response 70 - 5000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 71Hz
• Mechanical quality factor QMS 12.50
• Electrical quality factor QES 0.34
• Total quality factor QTS 0.33

Large signal parameters

• Maximum linear excursion xmax 4.5mm
• Air volume displaced at xmax VD 59cm³
• Power handling P 200W
• Program power Pmax 400W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 5.3Ω
• Inductance (1kHz) LE 0.7mH
• VC Diameter 44mm
• Winding height HVC 12mm
• Winding material Copper
• Former material Glass Fibre

Magnet

• Flux density B 1.25T
• Force factor Bl 11N/A
• Motor constant Bl/√RE 4.78N/√W
• Air gap height HAG 6mm
• Material Ferrite

Diaphragm

• Effective diameter 130mm
• Effective area SD 132cm²
• Moving mass MMS 18g
• Moving mass (without air load) MMD 16.8g
• Material Waterproof Front Side

Suspensions

• Stiffness KMS 3.46N/mm
• Compliance CMS 289µm/N
• Equivalent volume to the compliance VAS 7L
• Mechanical resistance RMS 0.64N·s/m

Dimensions

• Nominal diameter 6.5″
• 170mm
• Overall diameter 187mm
• Baffle cutout diameter 145mm
• Overall depth 88mm
• Flange thickness 13mm
• Mounting depth 75mm
• Volume occupied by the driver 0.9L
• Net weight 2.35kg