Lii Audio ST-6

Full-range

Nominal diameter6.5″ / 165 mm
Resonance42.7 Hz
Q factor0.41
Sensitivity90.7 dB
Program Power50 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

Specifications

  • Sensitivity (1W, 1m, infinite baffle) SPL1W 90.7dB
  • Frequency response 42 - 20000Hz

Thiele & Small parameters

  • Resonance frequency (free air) fS 42.7Hz
  • Mechanical quality factor QMS 3.84
  • Electrical quality factor QES 0.46
  • Total quality factor QTS 0.41

Large signal parameters

  • Power handling P 25W
  • Program power Pmax 50W

Voice Coil

  • Nominal impedance Z 8Ω
  • DC resistance RE 4.4Ω
  • Inductance (1kHz) LE 0.22mH

Magnet

  • Flux density B 1.55T
  • Force factor Bl 7.77N/A
  • Motor constant Bl/√RE 3.68N/√W
  • Material N52 Neodymium

Diaphragm

  • Effective diameter 130mm
  • Effective area SD 133cm²
  • Moving mass MMS 13.1g
  • Moving mass (without air load) MMD 11.9g
  • Material Aluminum

Suspensions

  • Stiffness KMS 1.15N/mm
  • Compliance CMS 871µm/N
  • Equivalent volume to the compliance VAS 21.7L
  • Mechanical resistance RMS 0.79N·s/m
  • Surround material DuPont

Dimensions

  • Nominal diameter 6.5
  • 165mm
  • Volume occupied by the driver (estimated) 0.5L
  • Frame material Cast Aluminium
Lii Audio ST-6 SPL & Impedance
Lii Audio ST-6 Dimensions

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