PowerBass 3XL-1501D

• Sensitivity (1W, 1m, infinite baffle) SPL1W 89.1dB
• Frequency response 25 - 400Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 25.9Hz
• Mechanical quality factor QMS 4.35
• Electrical quality factor QES 0.40
• Total quality factor QTS 0.40

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 1Ω
• DC resistance (in series) RE 2.4Ω
• Inductance (1kHz, in series, estimated) LE 2.58mH
• VC Diameter 76mm

Magnet

• Force factor (in series) Bl 19.2N/A
• Motor constant Bl/√RE 12.4N/√W
• Weight 14.32kg

Diaphragm

• Effective diameter 330mm
• Effective area SD 855cm²
• Moving mass MMS 341g
• Moving mass (without air load) MMD 324g
• Material Non Press Pulp Paper

Suspensions

• Stiffness KMS 8.91N/mm
• Compliance CMS 112µm/N
• Equivalent volume to the compliance VAS 117L
• Mechanical resistance RMS 12.8N·s/m

Dimensions

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