Accuton C90-6-078 5" Ceramic Dome Midrange

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.

• 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
• Nominal impedance - 6 Ohm
• Sensitivity - 88 dB/2.83 Volt
• Resonance frequency - 100 Hz

C90-6-078 datasheet

HiFiCompass measurements