BMS 8CN552

• Sensitivity (1W, 1m, infinite baffle) SPL1W 96dB
• Frequency response 70 - 3000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 87.6Hz
• Mechanical quality factor QMS 5.28
• Electrical quality factor QES 0.30
• Total quality factor QTS 0.29

Large signal parameters

• Maximum linear excursion xmax 4mm
• Air volume displaced at xmax VD 80cm³
• Power handling P 200W
• Program power Pmax 400W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 5.4Ω
• Inductance (1kHz) LE 0.179mH
• VC Diameter 52mm
• Winding height HVC 15mm
• Winding material Copper
• Former material Kapton

Magnet

• Flux density B 2T
• Force factor Bl 13.4N/A
• Motor constant Bl/√RE 5.78N/√W
• Air gap height HAG 7mm
• Material Neodymium

Diaphragm

• Effective diameter 160mm
• Effective area SD 200cm²
• Moving mass MMS 18.3g
• Moving mass (without air load) MMD 16.2g
• Material Polyester

Suspensions

• Stiffness KMS 5.56N/mm
• Compliance CMS 180µm/N
• Equivalent volume to the compliance VAS 10.1L
• Mechanical resistance RMS 1.91N·s/m

Dimensions

• Nominal diameter 8″
• 205mm
• Overall diameter 205mm
• Baffle cutout diameter 182mm
• Overall depth 115mm
• Volume occupied by the driver (estimated) 0.91L
• Net weight 2.15kg
• Frame material Cast Aluminum