Tang Band W4-2142

• Sensitivity (1W, 1m, infinite baffle) SPL1W 88.5dB
• Frequency response 60 - 20000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 60Hz
• Mechanical quality factor QMS 2.20
• Electrical quality factor QES 0.39
• Total quality factor QTS 0.33

Large signal parameters

• Maximum linear excursion xmax 2.4mm
• Air volume displaced at xmax VD 14cm³
• Power handling P 25W
• Program power Pmax 50W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 6.3Ω
• Inductance (1kHz) LE 0.022mH
• VC Diameter 25.4mm

Magnet

• Force factor Bl 5.41N/A
• Motor constant Bl/√RE 2.16N/√W
• Air gap height HAG 10mm
• Material Ferrite

Diaphragm

• Effective diameter 85mm
• Effective area SD 57cm²
• Moving mass MMS 4.61g
• Moving mass (without air load) MMD 4.3g
• Material Paper

Suspensions

• Stiffness KMS 0.719N/mm
• Compliance CMS 1390µm/N
• Equivalent volume to the compliance VAS 6.41L
• Mechanical resistance RMS 0.79N·s/m
• Surround material Structured Santoprene

Dimensions

• Nominal diameter 4″
• 102mm
• Volume occupied by the driver (estimated) 0.67L
• Net weight 1.65kg