Precision Devices PD.153C001

• Sensitivity (1W, 1m, infinite baffle) SPL1W 97.4dB
• Frequency response 40 - 3000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 38Hz
• Mechanical quality factor QMS 6.20
• Electrical quality factor QES 0.23
• Total quality factor QTS 0.22

Large signal parameters

• Maximum linear excursion xmax 7.7mm
• Air volume displaced at xmax VD 692cm³
• Power handling P 400W
• Program power Pmax 800W
• Peak power Ppeak 1600W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 5.5Ω
• Inductance (1kHz) LE 2.16mH
• VC Diameter 76.2mm
• Winding height HVC 21mm
• Winding material Copper
• Former material Glass Fibre

Magnet

• Flux density B 1.1T
• Force factor Bl 24.2N/A
• Motor constant Bl/√RE 10.3N/√W
• Air gap height HAG 11mm
• Diameter 200mm
• Material Y30 Ferrite

Diaphragm

• Effective diameter 338mm
• Effective area SD 899cm²
• Moving mass MMS 103g
• Moving mass (without air load) MMD 83.7g
• Material Paper

Suspensions

• Stiffness KMS 5.88N/mm
• Compliance CMS 170µm/N
• Equivalent volume to the compliance VAS 196L
• Mechanical resistance RMS 3.96N·s/m
• Surround material Black Cotton
• 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 10.8kg
• Frame material Vented cast aluminium