Beyma 10G40

• Sensitivity (1W, 1m, infinite baffle) SPL1W 93.1dB
• Frequency response 45 - 4000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 45Hz
• Mechanical quality factor QMS 7.10
• Electrical quality factor QES 0.32
• Total quality factor QTS 0.31

Large signal parameters

• Maximum linear excursion xmax 7mm
• Maximum excursion before damage xlim 28mm
• Air volume displaced at xmax VD 266cm³
• Power handling P 400W
• Program power Pmax 800W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 6.2Ω
• Inductance (1kHz) LE 0.6mH
• VC Diameter 76.2mm
• Winding height HVC 17.5mm

Magnet

• Force factor Bl 17N/A
• Motor constant Bl/√RE 6.83N/√W
• Air gap height HAG 7mm

Diaphragm

• Effective diameter 220mm
• Effective area SD 380cm²
• Moving mass MMS 52g
• Moving mass (without air load) MMD 46.8g

Suspensions

• Stiffness KMS 4.15N/mm
• Compliance CMS 241µm/N
• Equivalent volume to the compliance VAS 49L
• Mechanical resistance RMS 2.1N·s/m

Dimensions

• Nominal diameter 10″
• 250mm
• Overall diameter 261mm
• Baffle cutout diameter 228mm
• Overall depth 118mm
• Volume occupied by the driver (estimated) 2L
• Net weight 5.7kg