Precision Devices PD.24603BR

• Sensitivity (1W, 1m, infinite baffle) SPL1W 97.3dB
• Frequency response 20 - 200Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 34Hz
• Mechanical quality factor QMS 9.92
• Electrical quality factor QES 0.32
• Total quality factor QTS 0.31

Large signal parameters

• Maximum linear excursion xmax 16mm
• Air volume displaced at xmax VD 3582cm³
• Power handling P 1800W
• Program power Pmax 3600W
• Peak power Ppeak 7200W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 5.3Ω
• Inductance (1kHz) LE 4.01mH
• VC Diameter 152mm
• Winding height HVC 37mm
• Winding material Copper
• Former material Glass Fibre

Magnet

• Flux density B 1.5T
• Force factor Bl 39.5N/A
• Motor constant Bl/√RE 17.1N/√W
• Air gap height HAG 15mm
• Diameter 194mm
• Material Neodymium

Diaphragm

• Effective diameter 534mm
• Effective area SD 2239cm²
• Moving mass MMS 440g
• Moving mass (without air load) MMD 366g
• Material Paper

Suspensions

• Stiffness KMS 20.1N/mm
• Compliance CMS 49.8µm/N
• Equivalent volume to the compliance VAS 355L
• Mechanical resistance RMS 9.48N·s/m
• Surround material Fabric
• Spider material Fabric

Dimensions

• Nominal diameter 24″
• 610mm
• Overall diameter 632mm
• Baffle cutout diameter 573mm
• Overall depth 277mm
• Flange thickness 17mm
• Mounting depth 260mm
• Volume occupied by the driver (estimated) 15L
• Net weight 23.0kg
• Frame material Vented Cast Aluminium