Tang Band W3-871SC

• Sensitivity (1W, 1m, infinite baffle) SPL1W 86dB
• Frequency response 110 - 20000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 110Hz
• Mechanical quality factor QMS 3.40
• Electrical quality factor QES 0.71
• Total quality factor QTS 0.59

Large signal parameters

• Maximum linear excursion xmax 0.5mm
• Air volume displaced at xmax VD 1.6cm³
• Power handling P 12W
• Program power Pmax 25W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 6.6Ω
• Inductance (1kHz) LE 0.75mH
• VC Diameter 18mm

Magnet

• Force factor Bl 3.51N/A
• Motor constant Bl/√RE 1.37N/√W
• Air gap height HAG 6mm
• Material Ferrite

Diaphragm

• Effective diameter 64mm
• Effective area SD 32cm²
• Moving mass MMS 2g
• Moving mass (without air load) MMD 1.9g
• Material Silver Paper

Suspensions

• Stiffness KMS 0.883N/mm
• Compliance CMS 1133µm/N
• Equivalent volume to the compliance VAS 1.65L
• Mechanical resistance RMS 0.41N·s/m
• Surround material Santoprene

Dimensions

• Nominal diameter 3″
• 76mm
• Volume occupied by the driver (estimated) 0.24L
• Net weight 0.627kg