VOLT RV4564

Subwoofer

Nominal diameter18″ / 450 mm
Resonance26 Hz
Q factor0.31
Sensitivity92.3 dB
Linear excursion± 12.5 mm
Program Power1500 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 92.3dB
  • Frequency response 25 - 500Hz

Thiele & Small parameters

  • Resonance frequency (free air) fS 26Hz
  • Mechanical quality factor QMS 3.94
  • Electrical quality factor QES 0.34
  • Total quality factor QTS 0.31

Large signal parameters

  • Maximum linear excursion xmax 12.5mm
  • Maximum excursion before damage xlim 22mm
  • Air volume displaced at xmax VD 1286cm³
  • Power handling P 750W
  • Program power Pmax 1500W

Voice Coil

  • Nominal impedance Z 8Ω
  • DC resistance RE 5.8Ω
  • Inductance (1kHz) LE 3.8mH
  • VC Diameter 100mm
  • Winding material Copper

Magnet

  • Force factor Bl 25.7N/A
  • Motor constant Bl/√RE 10.7N/√W
  • Weight 11.5kg

Diaphragm

  • Effective diameter 362mm
  • Effective area SD 1029cm²
  • Moving mass MMS 235g
  • Moving mass (without air load) MMD 211g

Suspensions

  • Stiffness KMS 6.25N/mm
  • Compliance CMS 160µm/N
  • Equivalent volume to the compliance VAS 238L
  • Mechanical resistance RMS 9.74N·s/m

Dimensions

  • Nominal diameter 18
  • 450mm
  • Overall diameter 459mm
  • Baffle cutout diameter 398mm
  • Overall depth 229mm
  • Flange thickness 14mm
  • Mounting depth 215mm
  • Volume occupied by the driver 13L
  • Net weight 17.0kg
  • Frame material Diecast Aluminum
VOLT RV4564 SPL & Impedance
VOLT RV4564 Dimensions

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