Tang Band W8-2145

• Sensitivity (1W, 1m, infinite baffle) SPL1W 92.3dB
• Frequency response 40 - 20000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 40Hz
• Mechanical quality factor QMS 1.65
• Electrical quality factor QES 0.61
• Total quality factor QTS 0.45

Large signal parameters

• Maximum linear excursion xmax 3mm
• Air volume displaced at xmax VD 66cm³
• Power handling P 40W
• Program power Pmax 80W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 6.8Ω
• Inductance (1kHz) LE 0.011mH
• VC Diameter 38.5mm

Magnet

• Force factor Bl 6.59N/A
• Motor constant Bl/√RE 2.53N/√W
• Air gap height HAG 10mm
• Material Ferrite

Diaphragm

• Effective diameter 167mm
• Effective area SD 220cm²
• Moving mass MMS 15g
• Moving mass (without air load) MMD 12.6g
• Material Paper

Suspensions

• Stiffness KMS 1.02N/mm
• Compliance CMS 985µm/N
• Equivalent volume to the compliance VAS 67.7L
• Mechanical resistance RMS 2.28N·s/m
• Surround material Structured Santoprene

Dimensions

• Nominal diameter 8″
• 203mm
• Volume occupied by the driver (estimated) 1.8L
• Net weight 4.15kg