Beyma 8MI100

• Sensitivity (1W, 1m, infinite baffle) SPL1W 94.7dB
• Frequency response 100 - 7000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 90Hz
• Mechanical quality factor QMS 7.50
• Electrical quality factor QES 0.48
• Total quality factor QTS 0.45

Large signal parameters

• Maximum linear excursion xmax 3mm
• Air volume displaced at xmax VD 66cm³
• Power handling P 250W
• Program power Pmax 500W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 6.0Ω
• Inductance (1kHz) LE 0.2mH
• VC Diameter 50.8mm
• Winding height HVC 9mm

Magnet

• Force factor Bl 11.5N/A
• Motor constant Bl/√RE 4.69N/√W
• Air gap height HAG 7mm

Diaphragm

• Effective diameter 167mm
• Effective area SD 220cm²
• Moving mass MMS 19g
• Moving mass (without air load) MMD 16.6g

Suspensions

• Stiffness KMS 5.71N/mm
• Compliance CMS 175µm/N
• Equivalent volume to the compliance VAS 12L
• Mechanical resistance RMS 1.4N·s/m

Dimensions

• Nominal diameter 8″
• 200mm
• Overall diameter 212mm
• Baffle cutout diameter 181mm
• Overall depth 94mm
• Volume occupied by the driver (estimated) 1L
• Net weight 3.1kg