Lii Audio H 1802

Coaxial

Nominal diameter18″ / 458 mm
Resonance27.8 Hz
Q factor1.20
Sensitivity94.9 dB
Linear excursion± 5 mm
Program Power100 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 94.9dB
  • Frequency response 28 - 20000Hz

Thiele & Small parameters

  • Resonance frequency (free air) fS 27.8Hz
  • Mechanical quality factor QMS 8.31
  • Electrical quality factor QES 1.41
  • Total quality factor QTS 1.20

Large signal parameters

  • Maximum linear excursion xmax 5mm
  • Air volume displaced at xmax VD 612cm³
  • Power handling P 50W
  • Program power Pmax 100W

Voice Coil

  • Nominal impedance Z 8Ω
  • DC resistance RE 4.9Ω
  • Inductance (1kHz, estimated) LE 1.8mH
  • VC Diameter 50mm

Magnet

  • Force factor Bl 6.52N/A
  • Motor constant Bl/√RE 2.94N/√W
  • Diameter 200mm
  • Material Ceramic Y35

Diaphragm

  • Effective diameter 395mm
  • Effective area SD 1224cm²
  • Moving mass MMS 67.7g
  • Moving mass (without air load) MMD 38.3g

Suspensions

  • Stiffness KMS 2.14N/mm
  • Compliance CMS 468µm/N
  • Equivalent volume to the compliance VAS 996L
  • Mechanical resistance RMS 1.42N·s/m

Dimensions

  • Nominal diameter 18
  • 458mm
  • Overall diameter 458mm
  • Volume occupied by the driver (estimated) 5.5L
  • Net weight 12.0kg
Lii Audio H 1802 SPL & Impedance
Lii Audio H 1802 Dimensions

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Goldwood GW-1858

8 Ω
18Subwoofer
fS30.3 Hz
SD1277 cm²
20 - 6000 Hz
QTS1.10
xmax2 mm
SPL1W93.3 dB
Bl/√RE4.26
Pmax340 W