Tang Band W4-1052SD

• Sensitivity (1W, 1m, infinite baffle) SPL1W 88.1dB
• Frequency response 70 - 17000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 70Hz
• Mechanical quality factor QMS 4.52
• Electrical quality factor QES 0.49
• Total quality factor QTS 0.44

Large signal parameters

• Maximum linear excursion xmax 3.4mm
• Air volume displaced at xmax VD 19cm³
• Power handling P 20W
• Program power Pmax 40W

Voice Coil

• Nominal impedance Z 4Ω
• DC resistance RE 3.8Ω
• Inductance (1kHz) LE 0.061mH
• VC Diameter 25.4mm

Magnet

• Force factor Bl 3.44N/A
• Motor constant Bl/√RE 1.76N/√W
• Air gap height HAG 2.5mm
• Material Neodymium

Diaphragm

• Effective diameter 85mm
• Effective area SD 57cm²
• Moving mass MMS 3.85g
• Moving mass (without air load) MMD 3.5g
• Material Structured Polypropylene

Suspensions

• Stiffness KMS 0.609N/mm
• Compliance CMS 1643µm/N
• Equivalent volume to the compliance VAS 7.58L
• Mechanical resistance RMS 0.37N·s/m
• Surround material Rubber

Dimensions

• Nominal diameter 4″
• 102mm
• Volume occupied by the driver (estimated) 0.2L
• Net weight 0.53kg