Beyma 15MI100

• Sensitivity (1W, 1m, infinite baffle) SPL1W 97.9dB
• Frequency response 40 - 5000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 37Hz
• Mechanical quality factor QMS 6.38
• Electrical quality factor QES 0.30
• Total quality factor QTS 0.29

Large signal parameters

• Maximum linear excursion xmax 4.5mm
• Maximum excursion before damage xlim 12mm
• Air volume displaced at xmax VD 396cm³
• Power handling P 450W
• Program power Pmax 900W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 6.2Ω
• Inductance (1kHz) LE 1mH
• VC Diameter 77mm
• Winding height HVC 13.7mm

Magnet

• Force factor Bl 19.2N/A
• Motor constant Bl/√RE 7.71N/√W
• Air gap height HAG 10mm
• Material Ferrite

Diaphragm

• Effective diameter 335mm
• Effective area SD 880cm²
• Moving mass MMS 77g
• Moving mass (without air load) MMD 59.4g

Suspensions

• Stiffness KMS 4.17N/mm
• Compliance CMS 240µm/N
• Equivalent volume to the compliance VAS 264L
• Mechanical resistance RMS 2.8N·s/m

Dimensions

• Nominal diameter 15″
• 380mm
• Volume occupied by the driver (estimated) 3.5L
• Net weight 7.8kg