Celestion PULSE15

• Sensitivity (1W, 1m, infinite baffle) SPL1W 95.2dB
• Frequency response 40 - 3500Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 35.1Hz
• Mechanical quality factor QMS 4.75
• Electrical quality factor QES 0.47
• Total quality factor QTS 0.43

Large signal parameters

• Maximum linear excursion xmax 4.8mm
• Air volume displaced at xmax VD 406cm³
• Power handling P 400W
• Program power Pmax 800W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 5.7Ω
• Inductance (1kHz) LE 0.87mH
• VC Diameter 76.2mm
• Winding height HVC 17.5mm
• Winding material Copper
• Former material Polyimide

Magnet

• Force factor Bl 15.1N/A
• Motor constant Bl/√RE 6.31N/√W
• Air gap height HAG 8mm
• Height 46mm
• Material Ferrite

Diaphragm

• Effective diameter 330mm
• Effective area SD 855cm²
• Moving mass MMS 83.3g
• Moving mass (without air load) MMD 66g
• Material Kevlar loaded paper

Suspensions

• Stiffness KMS 4.17N/mm
• Compliance CMS 240µm/N
• Equivalent volume to the compliance VAS 247L
• Mechanical resistance RMS 3.93N·s/m
• Surround material Cloth-sealed

Dimensions

• Nominal diameter 15″
• 381mm
• Overall diameter 385mm
• Baffle cutout diameter 351mm
• Overall depth 162mm
• Volume occupied by the driver (estimated) 2.9L
• Net weight 4.9kg