Tang Band W69-1213SB

• Sensitivity (1W, 1m, infinite baffle) SPL1W 88.7dB
• Frequency response 40 - 5500Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 40Hz
• Mechanical quality factor QMS 2.28
• Electrical quality factor QES 0.55
• Total quality factor QTS 0.44

Large signal parameters

• Maximum linear excursion xmax 4.5mm
• Air volume displaced at xmax VD 102cm³
• Power handling P 60W
• Program power Pmax 120W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 6.5Ω
• Inductance (1kHz) LE 0.81mH
• VC Diameter 38.5mm

Magnet

• Force factor Bl 8.3N/A
• Motor constant Bl/√RE 3.26N/√W
• Air gap height HAG 14mm
• Material Neodymium

Diaphragm

• Effective diameter 170mm
• Effective area SD 226cm²
• Moving mass MMS 23g
• Moving mass (without air load) MMD 21.4g
• Material Paper

Suspensions

• Stiffness KMS 1.46N/mm
• Compliance CMS 685µm/N
• Equivalent volume to the compliance VAS 49.6L
• Mechanical resistance RMS 2.54N·s/m
• Surround material Rubber W-Shape

Dimensions

• Nominal size 6 x 9″
• 152 x 229mm
• Volume occupied by the driver (estimated) 0.4L