Tang Band W5-704D

• Sensitivity (1W, 1m, infinite baffle) SPL1W 89.3dB
• Frequency response 55 - 9000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 55Hz
• Mechanical quality factor QMS 2.07
• Electrical quality factor QES 0.46
• Total quality factor QTS 0.38

Large signal parameters

• Maximum linear excursion xmax 3.3mm
• Air volume displaced at xmax VD 31cm³
• Power handling P 28W
• Program power Pmax 56W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 6.0Ω
• Inductance (1kHz) LE 0.063mH
• VC Diameter 25mm

Magnet

• Force factor Bl 6.17N/A
• Motor constant Bl/√RE 2.52N/√W
• Air gap height HAG 6mm
• Material Ferrite

Diaphragm

• Effective diameter 109mm
• Effective area SD 94cm²
• Moving mass MMS 7.98g
• Moving mass (without air load) MMD 7.4g
• Material Polypropylene-Mica

Suspensions

• Stiffness KMS 1.08N/mm
• Compliance CMS 922µm/N
• Equivalent volume to the compliance VAS 11.6L
• Mechanical resistance RMS 1.33N·s/m
• Surround material Twin Roll Rubber

Dimensions

• Nominal diameter 5″
• 127mm
• Volume occupied by the driver (estimated) 0.8L
• Net weight 1.95kg