Beyma 12LEX1300Nd

• Sensitivity (1W, 1m, infinite baffle) SPL1W 93.3dB
• Frequency response 45 - 1500Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 45Hz
• Mechanical quality factor QMS 4.20
• Electrical quality factor QES 0.25
• Total quality factor QTS 0.24

Large signal parameters

• Maximum linear excursion xmax 11mm
• Maximum excursion before damage xlim 65mm
• Air volume displaced at xmax VD 605cm³
• Power handling P 1300W
• Program power Pmax 2600W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 5.0Ω
• Inductance (1kHz) LE 1.3mH
• VC Diameter 101.6mm
• Winding height HVC 28mm

Magnet

• Force factor Bl 26.4N/A
• Motor constant Bl/√RE 11.8N/√W
• Air gap height HAG 14mm

Diaphragm

• Effective diameter 265mm
• Effective area SD 550cm²
• Moving mass MMS 125g
• Moving mass (without air load) MMD 116g

Suspensions

• Stiffness KMS 10N/mm
• Compliance CMS 100µm/N
• Equivalent volume to the compliance VAS 43L
• Mechanical resistance RMS 8.4N·s/m

Dimensions

• Nominal diameter 12″
• 300mm
• Overall diameter 315mm
• Baffle cutout diameter 282mm
• Overall depth 176mm
• Volume occupied by the driver (estimated) 3.8L
• Net weight 8.3kg