FaitalPRO 18FH510 4Ω

• Sensitivity (1W, 1m, infinite baffle) SPL1W 96.8dB
• Frequency response 30 - 2500Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 30Hz
• Mechanical quality factor QMS 13.60
• Electrical quality factor QES 0.27
• Total quality factor QTS 0.26

Large signal parameters

• Maximum linear excursion xmax 9.5mm
• Maximum excursion before damage xlim 20mm
• Air volume displaced at xmax VD 1141cm³
• Power handling P 600W
• Program power Pmax 1200W

Voice Coil

• Nominal impedance Z 4Ω
• DC resistance RE 3.3Ω
• Inductance (1kHz) LE 1.06mH
• VC Diameter 77mm
• Winding height HVC 22.4mm
• Winding material Copper
• Former material Glass Fiber

Magnet

• Flux density B 1.2T
• Force factor Bl 18.3N/A
• Motor constant Bl/√RE 10.1N/√W
• Air gap height HAG 10.5mm
• Material Ferrite Ring

Diaphragm

• Effective diameter 392mm
• Effective area SD 1207cm²
• Moving mass MMS 146g
• Moving mass (without air load) MMD 117g

Suspensions

• Stiffness KMS 5.26N/mm
• Compliance CMS 190µm/N
• Equivalent volume to the compliance VAS 391L
• Mechanical resistance RMS 2N·s/m

Dimensions

• Nominal diameter 18″
• 460mm
• Overall diameter 460mm
• Baffle cutout diameter 421mm
• Overall depth 202mm
• Flange thickness 14mm
• Mounting depth 188mm
• Volume occupied by the driver 6.1L
• Net weight 8.8kg
• Frame material Aluminium