Beyma 18LEX1600Nd

• Sensitivity (1W, 1m, infinite baffle) SPL1W 93.8dB
• Frequency response 35 - 1000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 33Hz
• Mechanical quality factor QMS 11.40
• Electrical quality factor QES 0.45
• Total quality factor QTS 0.43

Large signal parameters

• Maximum linear excursion xmax 14.5mm
• Maximum excursion before damage xlim 65mm
• Air volume displaced at xmax VD 1820cm³
• Power handling P 1600W
• Program power Pmax 3200W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 5.8Ω
• Inductance (1kHz) LE 1.9mH
• VC Diameter 101.6mm
• Winding height HVC 35mm

Magnet

• Force factor Bl 24.5N/A
• Motor constant Bl/√RE 10.2N/√W
• Air gap height HAG 14mm

Diaphragm

• Effective diameter 400mm
• Effective area SD 1255cm²
• Moving mass MMS 229g
• Moving mass (without air load) MMD 199g

Suspensions

• Stiffness KMS 9.62N/mm
• Compliance CMS 104µm/N
• Equivalent volume to the compliance VAS 231L
• Mechanical resistance RMS 4.1N·s/m

Dimensions

• Nominal diameter 18″
• 460mm
• Overall diameter 462mm
• Baffle cutout diameter 426mm
• Overall depth 234mm
• Volume occupied by the driver (estimated) 6.3L
• Net weight 9.5kg