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Accuton C173-6-090 Ceramic Midrange

Audiophile midrange driver with Sapphire diaphragm.

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The C173-6-090 is a midrange drive unit featuring an ultra hard ceramic (Sapphire) 120mm cone in a 173mm diameter chassis.

Precision cut apertures in the ceramic diaphragm provide critical damping of the 5 kHz cone resonance.

An underhung motor design featuring a 55mm titanium voice coil former and large Neodymium magnet yield high midrange resolution.

This exotic unit is designed to operate in a sealed enclosure, here are some example parameters:

Vb: 2L, -13dB @ 80Hz, F-3dB: 160Hz, Q: 0.71 (typical)

Vb: 4.5L, -10dB @ 80Hz, F-3dB: 170Hz, Q: 0.50 (clean transient response)

Key Features:

  • Ultra hard 120mm ceramic cone (Corundum / Sapphire)
  • 173mm diameter chassis with protective grille
  • Vented pole piece, spider and voice coil former
  • Extended response 80Hz - 3.2Khz
  • Underhung motor, Titanium VC former
  • Neodymium magnet system
  • Very low distortion

Basic Parameters:

    Resonant frequency (fs) 57Hz DC resistance (Re) 6.61Ω
    Mechanical  Q factor (Qms) 3.75 Power handling 120W
    Electrical Q factor (Qes) 0.26 Sensitivity (2.83V/1m) 93dB
    Total Q factor (Qts) 0.26 Chassis diameter 173mm
    Equivalent volume (Vas) 15.5L Cutout diameter 145.6mm

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    Built to order - contact us for a lead time.