Tang Band W4-2315

• Sensitivity (1W, 1m, infinite baffle) SPL1W 88.2dB
• Frequency response 65 - 40000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 65Hz
• Mechanical quality factor QMS 3.68
• Electrical quality factor QES 0.31
• Total quality factor QTS 0.29

Large signal parameters

• Maximum linear excursion xmax 2.8mm
• Air volume displaced at xmax VD 19cm³
• Power handling P 30W
• Program power Pmax 60W

Voice Coil

• Nominal impedance Z 4Ω
• DC resistance RE 3.6Ω
• Inductance (1kHz) LE 0.09mH
• VC Diameter 32mm

Magnet

• Force factor Bl 6.2N/A
• Motor constant Bl/√RE 3.27N/√W
• Air gap height HAG 12mm
• Material Neodymium

Diaphragm

• Effective diameter 94mm
• Effective area SD 69cm²
• Moving mass MMS 8.09g
• Moving mass (without air load) MMD 7.7g
• Material Paper

Suspensions

• Stiffness KMS 1.29N/mm
• Compliance CMS 773µm/N
• Equivalent volume to the compliance VAS 4.96L
• Mechanical resistance RMS 0.9N·s/m
• Surround material Rubber

Dimensions

• Nominal diameter 4.5″
• 114mm
• Volume occupied by the driver (estimated) 0.48L
• Net weight 1.196kg