Accuton C90-6-078 Ceramic Midrange

C90-6-078

Esoteric midrange driver with 90mm Sapphire diaphragm.

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This item has been discontinued - special order only.

The C90-6-078 is a midrange drive unit featuring an ultra hard ceramic (Sapphire) 90mm diaphragm in a 130mm square chassis.

The diaphragm profile is quite shallow and essentially is best viewed as a large inverted dome with the dispersion advantages of such. Precision cut apertures provide critical damping of the 8 kHz resonance.

An  FEA optimized overhung motor design with 38 mm aluminium voice coil former guarantees low energy storage and excellent heat transfer.

Also featuring a low loss fabric surround and a thin fabric spider to center the moving parts with high linearity, this exotic unit is a superb midrange driver for hi-end applications.

We recommend an application from 200 Hz – 5000 Hz.

Full datasheets can be downloaded from below.

Key Features:

  • Ultra hard 90mm diaphragm (Corundum / Sapphire)
  • 130mm square chassis with protective grille
  • Vented pole piece and spider assembly
  • Extended response 200Hz - 5Khz
  • Overhung motor, 38mm VC former
  • Ferrite magnet system
  • Very low distortion

Basic Parameters:

    Resonant frequency (fs) 100Hz DC resistance (Re) 6.4Ω
    Mechanical  Q factor (Qms) 2.4 Power handling 120W
    Electrical Q factor (Qes) 1.52 Sensitivity (2.83V/1m) 88dB
    Total Q factor (Qts) 0.92 Chassis diameter/square 130mm
    Equivalent volume (Vas) 3.9L Cutout diameter/square 111mm

    Click icons to download :

    .pdf iconData                                             .pdf icon3D View (large file)     

    .pdf iconDimensions




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