Tang Band W1-2121S

Full-range

Nominal diameter1″ / 25 mm
Resonance120 Hz
Q factor0.35
Sensitivity78.2 dB
Linear excursion± 2.3 mm
Program Power12 W
Driver
Port
Combined
Frequency response
Hz
Impedance
Ω
Impedance Phase
°
Excursion
mm
Velocity
m/s
SPL
dB
Acoustical Phase
°
Group Delay
ms
Transient response
ms
Discard
Apply
  • 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
Tang Band W1-2121S SPL & Impedance
Tang Band W1-2121S Dimensions

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