PowerBass 3XL-1502D

• Sensitivity (1W, 1m, infinite baffle) SPL1W 87.7dB
• Frequency response 25 - 400Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 24.2Hz
• Mechanical quality factor QMS 3.88
• Electrical quality factor QES 0.46
• Total quality factor QTS 0.42

Large signal parameters

• Maximum linear excursion xmax 24mm
• Air volume displaced at xmax VD 2053cm³
• Power handling P 1000W
• Program power Pmax 2000W

Voice Coil

• Nominal impedance Z 2 x 2Ω
• DC resistance (in series) RE 3.8Ω
• Inductance (1kHz, in series, estimated) LE 4.29mH
• VC Diameter 76mm

Magnet

• Force factor (in series) Bl 22N/A
• Motor constant Bl/√RE 11.3N/√W
• Weight 14.32kg

Diaphragm

• Effective diameter 330mm
• Effective area SD 855cm²
• Moving mass MMS 366g
• Moving mass (without air load) MMD 349g
• Material Non Press Pulp Paper

Suspensions

• Stiffness KMS 8.46N/mm
• Compliance CMS 118µm/N
• Equivalent volume to the compliance VAS 123L
• Mechanical resistance RMS 14.3N·s/m

Dimensions

• Nominal diameter 15″
• 381mm
• Baffle cutout diameter 356mm
• Mounting depth 234mm
• Volume occupied by the driver (estimated) 4.3L