Tang Band W6-1139SIF

• Sensitivity (1W, 1m, infinite baffle) SPL1W 83.2dB
• Frequency response 35 - 800Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 35Hz
• Mechanical quality factor QMS 2.65
• Electrical quality factor QES 0.47
• Total quality factor QTS 0.40

Large signal parameters

• Maximum linear excursion xmax 11.5mm
• Air volume displaced at xmax VD 161cm³
• Power handling P 50W
• Program power Pmax 100W

Voice Coil

• Nominal impedance Z 4Ω
• DC resistance RE 3.6Ω
• Inductance (1kHz) LE 0.47mH
• VC Diameter 38.5mm

Magnet

• Force factor Bl 8.47N/A
• Motor constant Bl/√RE 4.46N/√W
• Air gap height HAG 6mm
• Material Ferrite

Diaphragm

• Effective diameter 134mm
• Effective area SD 140cm²
• Moving mass MMS 39.9g
• Moving mass (without air load) MMD 38.7g
• Material Paper

Suspensions

• Stiffness KMS 1.67N/mm
• Compliance CMS 599µm/N
• Equivalent volume to the compliance VAS 11.8L
• Mechanical resistance RMS 3.31N·s/m
• Surround material Rubber

Dimensions

• Nominal diameter 6.5″
• 165mm
• Volume occupied by the driver (estimated) 1.2L
• Net weight 2.8kg