Beyma 18LX60V2/S

• Sensitivity (1W, 1m, infinite baffle) SPL1W 94.3dB
• Frequency response 25 - 1000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 35Hz
• Mechanical quality factor QMS 15.70
• Electrical quality factor QES 0.50
• Total quality factor QTS 0.49

Large signal parameters

• Maximum linear excursion xmax 8mm
• Maximum excursion before damage xlim 47mm
• Air volume displaced at xmax VD 1056cm³
• Power handling P 700W
• Program power Pmax 1400W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 5.1Ω
• Inductance (1kHz) LE 2.1mH
• VC Diameter 101.6mm
• Winding height HVC 20mm

Magnet

• Force factor Bl 21.8N/A
• Motor constant Bl/√RE 9.65N/√W
• Air gap height HAG 10mm

Diaphragm

• Effective diameter 410mm
• Effective area SD 1320cm²
• Moving mass MMS 215g
• Moving mass (without air load) MMD 183g

Suspensions

• Stiffness KMS 10.6N/mm
• Compliance CMS 94.5µm/N
• Equivalent volume to the compliance VAS 236L
• Mechanical resistance RMS 3.1N·s/m

Dimensions

• Nominal diameter 18″
• 460mm
• Overall diameter 461mm
• Baffle cutout diameter 415mm
• Overall depth 193mm
• Volume occupied by the driver (estimated) 6.2L
• Net weight 11.2kg