Beyma 8MC500Nd

• Sensitivity (1W, 1m, infinite baffle) SPL1W 95.8dB
• Frequency response 80 - 6000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 69Hz
• Mechanical quality factor QMS 2.60
• Electrical quality factor QES 0.19
• Total quality factor QTS 0.18

Large signal parameters

• Maximum linear excursion xmax 5mm
• Maximum excursion before damage xlim 42mm
• Air volume displaced at xmax VD 110cm³
• Power handling P 500W
• Program power Pmax 1000W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 5.3Ω
• Inductance (1kHz) LE 0.5mH
• VC Diameter 63.5mm
• Winding height HVC 14mm

Magnet

• Force factor Bl 16.7N/A
• Motor constant Bl/√RE 7.25N/√W
• Air gap height HAG 8mm

Diaphragm

• Effective diameter 167mm
• Effective area SD 220cm²
• Moving mass MMS 23g
• Moving mass (without air load) MMD 20.6g

Suspensions

• Stiffness KMS 4.33N/mm
• Compliance CMS 231µm/N
• Equivalent volume to the compliance VAS 15.9L
• Mechanical resistance RMS 3.8N·s/m

Dimensions

• Nominal diameter 8″
• 200mm
• Overall diameter 212mm
• Baffle cutout diameter 182mm
• Overall depth 100mm
• Volume occupied by the driver (estimated) 1L
• Net weight 2.8kg