Tang Band W1-2121S

• Sensitivity (1W, 1m, infinite baffle) SPL1W 78.2dB
• Frequency response 120 - 15000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 120Hz
• Mechanical quality factor QMS 1.33
• Electrical quality factor QES 0.47
• Total quality factor QTS 0.35

Large signal parameters

• Maximum linear excursion xmax 2.3mm
• Air volume displaced at xmax VD 2.1cm³
• Power handling P 6W
• Program power Pmax 12W

Voice Coil

• Nominal impedance Z 4Ω
• DC resistance RE 3.5Ω
• Inductance (1kHz) LE 0.07mH
• VC Diameter 28mm

Magnet

• Force factor Bl 3.14N/A
• Motor constant Bl/√RE 1.68N/√W
• Air gap height HAG 2.3mm
• Material Neodymium

Diaphragm

• Effective diameter 34mm
• Effective area SD 9cm²
• Moving mass MMS 1.68g
• Moving mass (without air load) MMD 1.7g
• Material Aluminium

Suspensions

• Stiffness KMS 1.05N/mm
• Compliance CMS 949µm/N
• Equivalent volume to the compliance VAS 0.11L
• Mechanical resistance RMS 0.95N·s/m
• Surround material Santoprene

Dimensions

• Nominal diameter 1″
• 25mm
• Net weight 0.08kg