Beyma 18P1000Fe V2/S

• Sensitivity (1W, 1m, infinite baffle) SPL1W 95.2dB
• Frequency response 30 - 2000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 33Hz
• Mechanical quality factor QMS 10.50
• Electrical quality factor QES 0.33
• Total quality factor QTS 0.32

Large signal parameters

• Maximum linear excursion xmax 8mm
• Maximum excursion before damage xlim 52mm
• Air volume displaced at xmax VD 1000cm³
• Power handling P 1200W
• Program power Pmax 2400W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 5.2Ω
• Inductance (1kHz) LE 1.75mH
• VC Diameter 101.6mm
• Winding height HVC 21mm

Magnet

• Force factor Bl 26.8N/A
• Motor constant Bl/√RE 11.8N/√W
• Air gap height HAG 12mm

Diaphragm

• Effective diameter 399mm
• Effective area SD 1250cm²
• Moving mass MMS 221g
• Moving mass (without air load) MMD 191g

Suspensions

• Stiffness KMS 9.52N/mm
• Compliance CMS 105µm/N
• Equivalent volume to the compliance VAS 230L
• Mechanical resistance RMS 4.4N·s/m

Dimensions

• Nominal diameter 18″
• 460mm
• Overall diameter 461mm
• Baffle cutout diameter 415mm
• Overall depth 212mm
• Volume occupied by the driver (estimated) 7.4L
• Net weight 13.5kg