HiFonics MERCURY MRW84

4Ω

Subwoofer

Nominal diameter8″ / 200 mm
Resonance42.6 Hz
Q factor0.49
Sensitivity84.8 dB
Linear excursion± 6.5 mm
Program Power600 W
HiFonics MRW84 SubwooferHiFonics MRW84 SubwooferHiFonics MRW84 Subwoofer
Excursion
Velocity
SPL
Phase
Group delay
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 84.8dB

Thiele & Small parameters

  • Resonance frequency (free air) fS 42.6Hz
  • Mechanical quality factor QMS 4.53
  • Electrical quality factor QES 0.55
  • Total quality factor QTS 0.49

Large signal parameters

  • Maximum linear excursion (one way) xmax 6.5mm
  • Maximum excursion before damage xlim 13mm
  • Air volume displaced at xmax VD 144cm³
  • Power handling P 300W
  • Program power Pmax 600W

Voice Coil

  • Nominal impedance Z 4Ω
  • DC resistance RE 2.8Ω
  • Inductance (1kHz) LE 1.34mH
  • VC Diameter 50mm
  • Winding height HVC 19mm
  • Former material Aluminium

Magnet

  • Force factor Bl 10N/A
  • Motor constant Bl/√RE 5.98N/√W
  • Diameter 120mm
  • Height 20mm
  • Weight 0.851kg
  • Material Y25

Diaphragm

  • Effective diameter 168mm
  • Effective area SD 222cm²
  • Moving mass MMS 73.2g
  • Moving mass (without air load) MMD 70.8g
  • Material Non-pressed paper

Suspensions

  • Stiffness KMS 5.35N/mm
  • Compliance CMS 187µm/N
  • Equivalent volume to the compliance VAS 13.1L
  • Mechanical resistance RMS 4.33N·s/m
  • Surround material Rubber

Dimensions

  • Nominal diameter 8″
  • 200mm
  • Overall diameter 209mm
  • Baffle cutout diameter 182mm
  • Mounting depth 105mm
  • Volume occupied by the driver (estimated) 1.4L
  • Net weight 3.4kg
  • Frame material Steel
Impedance
Step response
Tone Burst
PDF fileDatasheet

Export this driver to a simulation software:

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