Beyma CM-10

• Sensitivity (1W, 1m, infinite baffle) SPL1W 93.5dB
• Frequency response 40 - 5000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 61Hz
• Mechanical quality factor QMS 6.38
• Electrical quality factor QES 0.55
• Total quality factor QTS 0.51

Large signal parameters

• Maximum linear excursion xmax 6.5mm
• Maximum excursion before damage xlim 12.3mm
• Air volume displaced at xmax VD 254cm³
• Power handling P 125W
• Program power Pmax 250W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 6.2Ω
• Inductance (1kHz) LE 1.2mH
• VC Diameter 38.5mm
• Winding height HVC 16mm

Magnet

• Force factor Bl 12.2N/A
• Motor constant Bl/√RE 4.92N/√W
• Air gap height HAG 7mm
• Material Ferrite

Diaphragm

• Effective diameter 223mm
• Effective area SD 390cm²
• Moving mass MMS 35g
• Moving mass (without air load) MMD 29.9g

Suspensions

• Stiffness KMS 5.21N/mm
• Compliance CMS 192µm/N
• Equivalent volume to the compliance VAS 40.7L
• Mechanical resistance RMS 2.13N·s/m

Dimensions

• Nominal diameter 10″
• 250mm
• Volume occupied by the driver (estimated) 1.2L
• Net weight 2.93kg