PRV Audio MT8CX680-NDY-4

Coaxial

Nominal diameter8″ / 206 mm
Resonance87.7 Hz
Q factor0.41
Sensitivity96.3 dB
Linear excursion± 3.5 mm
Program Power600 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 96.3dB
  • Frequency response 80 - 9000Hz

Thiele & Small parameters

  • Resonance frequency (free air) fS 87.7Hz
  • Mechanical quality factor QMS 6.96
  • Electrical quality factor QES 0.44
  • Total quality factor QTS 0.41

Large signal parameters

  • Maximum linear excursion xmax 3.5mm
  • Air volume displaced at xmax VD 85cm³
  • Power handling P 300W
  • Program power Pmax 600W
  • Peak power Ppeak 1200W

Voice Coil

  • Nominal impedance Z 4Ω
  • DC resistance RE 3.2Ω
  • Inductance (1kHz) LE 0.18mH
  • VC Diameter 51mm
  • Winding height HVC 11mm
  • Winding material Copper Clad Aluminium
  • Former material Kapton

Magnet

  • Force factor Bl 8N/A
  • Motor constant Bl/√RE 4.47N/√W
  • Air gap height HAG 8mm

Diaphragm

  • Effective diameter 176mm
  • Effective area SD 243cm²
  • Moving mass MMS 15.9g
  • Moving mass (without air load) MMD 13.3g

Suspensions

  • Stiffness KMS 4.85N/mm
  • Compliance CMS 206µm/N
  • Equivalent volume to the compliance VAS 17.1L
  • Mechanical resistance RMS 1.26N·s/m

Dimensions

  • Nominal diameter 8
  • 206mm
  • Overall diameter 206mm
  • Baffle cutout diameter 185mm
  • Overall depth 142mm
  • Flange thickness 30mm
  • Mounting depth 112mm
  • Volume occupied by the driver (estimated) 1L
  • Net weight 2.1kg
  • Frame material Aluminium
PRV Audio MT8CX680-NDY-4 Impedance
PRV Audio MT8CX680-NDY-4 SPL
PRV Audio MT8CX680-NDY-4 Dimensions

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