Precision Devices PD.153C002

• Sensitivity (1W, 1m, infinite baffle) SPL1W 98.4dB
• Frequency response 40 - 5000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 38Hz
• Mechanical quality factor QMS 4.03
• Electrical quality factor QES 0.27
• Total quality factor QTS 0.25

Large signal parameters

• Maximum linear excursion xmax 6.8mm
• Air volume displaced at xmax VD 576cm³
• Power handling P 550W
• Program power Pmax 1100W
• Peak power Ppeak 2200W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 5.6Ω
• Inductance (1kHz) LE 1.28mH
• VC Diameter 76.2mm
• Winding height HVC 18.5mm
• Winding material Copper Clad Aluminium
• Former material Kapton

Magnet

• Flux density B 1.2T
• Force factor Bl 18.9N/A
• Motor constant Bl/√RE 7.99N/√W
• Air gap height HAG 10mm
• Diameter 200mm
• Material Y30 Ferrite

Diaphragm

• Effective diameter 330mm
• Effective area SD 853cm²
• Moving mass MMS 67.1g
• Moving mass (without air load) MMD 49g
• Material Paper

Suspensions

• Stiffness KMS 3.93N/mm
• Compliance CMS 254µm/N
• Equivalent volume to the compliance VAS 263L
• Mechanical resistance RMS 3.98N·s/m
• Surround material Fabric
• Spider material Fabric

Dimensions

• Nominal diameter 15″
• 381mm
• Overall diameter 408mm
• Baffle cutout diameter 356mm
• Overall depth 166mm
• Flange thickness 11mm
• Mounting depth 155mm
• Volume occupied by the driver (estimated) 5.1L
• Net weight 10.85kg
• Frame material Vented cast aluminium