Tang Band W4-2099

• Sensitivity (1W, 1m, infinite baffle) SPL1W 83.3dB
• Frequency response 60 - 7000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 60Hz
• Mechanical quality factor QMS 3.71
• Electrical quality factor QES 0.54
• Total quality factor QTS 0.47

Large signal parameters

• Maximum linear excursion xmax 3mm
• Air volume displaced at xmax VD 17cm³
• Power handling P 28W
• Program power Pmax 56W

Voice Coil

• Nominal impedance Z 2Ω
• DC resistance RE 1.8Ω
• Inductance (1kHz) LE 0.04mH
• VC Diameter 25.4mm

Magnet

• Force factor Bl 3.71N/A
• Motor constant Bl/√RE 2.77N/√W
• Air gap height HAG 4mm
• Material Ferrite

Diaphragm

• Effective diameter 85mm
• Effective area SD 57cm²
• Moving mass MMS 9.98g
• Moving mass (without air load) MMD 9.7g
• Material Glass Fiber

Suspensions

• Stiffness KMS 1.67N/mm
• Compliance CMS 599µm/N
• Equivalent volume to the compliance VAS 2.76L
• Mechanical resistance RMS 1.01N·s/m
• Surround material Rubber

Dimensions

• Nominal diameter 4″
• 102mm
• Volume occupied by the driver (estimated) 0.28L
• Net weight 0.73kg