PRV Audio 18SW2400

• Sensitivity (1W, 1m, infinite baffle) SPL1W 93.4dB
• Frequency response 45 - 2200Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 36.3Hz
• Mechanical quality factor QMS 15.57
• Electrical quality factor QES 0.58
• Total quality factor QTS 0.56

Large signal parameters

• Maximum linear excursion xmax 12.5mm
• Air volume displaced at xmax VD 1613cm³
• Power handling P 1200W
• Program power Pmax 2400W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 5.6Ω
• Inductance (1kHz) LE 1.54mH
• VC Diameter 100mm
• Winding height HVC 31mm
• Winding material Copper
• Former material Glass Fiber

Magnet

• Force factor Bl 22.5N/A
• Motor constant Bl/√RE 9.51N/√W
• Air gap height HAG 12mm

Diaphragm

• Effective diameter 405mm
• Effective area SD 1290cm²
• Moving mass MMS 231g
• Moving mass (without air load) MMD 200g

Suspensions

• Stiffness KMS 12N/mm
• Compliance CMS 83µm/N
• Equivalent volume to the compliance VAS 193L
• Mechanical resistance RMS 3.39N·s/m

Dimensions

• Nominal diameter 18″
• 457mm
• Overall diameter 467mm
• Baffle cutout diameter 423mm
• Overall depth 229mm
• Flange thickness 20mm
• Mounting depth 209mm
• Volume occupied by the driver (estimated) 7.5L
• Net weight 12.7kg
• Frame material Die Cast Aluminium