Beyma 12LEX1000Fe

• Sensitivity (1W, 1m, infinite baffle) SPL1W 92.8dB
• Frequency response 50 - 1500Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 49Hz
• Mechanical quality factor QMS 3.60
• Electrical quality factor QES 0.32
• Total quality factor QTS 0.29

Large signal parameters

• Maximum linear excursion xmax 11mm
• Maximum excursion before damage xlim 51mm
• Air volume displaced at xmax VD 605cm³
• Power handling P 1000W
• Program power Pmax 2000W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 5.4Ω
• Inductance (1kHz) LE 1.7mH
• VC Diameter 88.9mm
• Winding height HVC 27mm

Magnet

• Force factor Bl 24.6N/A
• Motor constant Bl/√RE 10.6N/√W
• Air gap height HAG 12mm

Diaphragm

• Effective diameter 265mm
• Effective area SD 550cm²
• Moving mass MMS 118g
• Moving mass (without air load) MMD 109g

Suspensions

• Stiffness KMS 11.2N/mm
• Compliance CMS 89µm/N
• Equivalent volume to the compliance VAS 38.4L
• Mechanical resistance RMS 10.1N·s/m

Dimensions

• Nominal diameter 12″
• 300mm
• Overall diameter 315mm
• Baffle cutout diameter 282mm
• Overall depth 166mm
• Volume occupied by the driver (estimated) 4.2L
• Net weight 10.4kg