Beyma 8CMV2

• Sensitivity (1W, 1m, infinite baffle) SPL1W 92.1dB
• Frequency response 80 - 8000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 75Hz
• Mechanical quality factor QMS 7.70
• Electrical quality factor QES 0.55
• Total quality factor QTS 0.51

Large signal parameters

• Maximum linear excursion xmax 5.7mm
• Maximum excursion before damage xlim 29mm
• Air volume displaced at xmax VD 125cm³
• Power handling P 250W
• Program power Pmax 500W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 5.1Ω
• Inductance (1kHz) LE 0.6mH
• VC Diameter 38.1mm
• Winding height HVC 14mm

Magnet

• Force factor Bl 9.6N/A
• Motor constant Bl/√RE 4.25N/√W
• Air gap height HAG 6mm

Diaphragm

• Effective diameter 167mm
• Effective area SD 220cm²
• Moving mass MMS 21g
• Moving mass (without air load) MMD 18.6g

Suspensions

• Stiffness KMS 4.7N/mm
• Compliance CMS 213µm/N
• Equivalent volume to the compliance VAS 14.6L
• Mechanical resistance RMS 1.3N·s/m

Dimensions

• Nominal diameter 8″
• 200mm
• Overall diameter 210mm
• Baffle cutout diameter 180mm
• Overall depth 92mm
• Volume occupied by the driver (estimated) 0.86L
• Net weight 2.4kg