Pioneer TS-W3003D4

• Sensitivity (1W, 1m, infinite baffle) SPL1W 86.2dB
• Frequency response 20 - 80Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 35Hz
• Mechanical quality factor QMS 11.50
• Electrical quality factor QES 0.62
• Total quality factor QTS 0.59

Large signal parameters

• Maximum linear excursion xmax 13.8mm
• Air volume displaced at xmax VD 748cm³
• Power handling P 600W
• Program power Pmax 1200W

Voice Coil

• Nominal impedance Z 2 x 4Ω
• DC resistance (in series) RE 5.8Ω
• Inductance (1kHz, in series) LE 5.99mH

Magnet

• Force factor (in series) Bl 22.4N/A
• Motor constant Bl/√RE 9.3N/√W

Diaphragm

• Effective diameter 263mm
• Effective area SD 542cm²
• Moving mass MMS 257g
• Moving mass (without air load) MMD 248g

Suspensions

• Stiffness KMS 12N/mm
• Compliance CMS 83µm/N
• Equivalent volume to the compliance VAS 34.6L
• Mechanical resistance RMS 4.44N·s/m
• Surround material Fiber Reinforced Elastic Polymer

Dimensions

• Nominal diameter 12″
• 300mm
• Overall diameter 327mm
• Baffle cutout diameter 283mm
• Overall depth 194mm
• Flange thickness 18mm
• Mounting depth 176mm
• Volume occupied by the driver (estimated) 3.9L
• Net weight 7.65kg