Esoteric midrange driver with 90mm Sapphire diaphragm.
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.
- 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
|Resonant frequency (fs)
||DC resistance (Re)
|Mechanical Q factor (Qms)
|Electrical Q factor (Qes)
|Total Q factor (Qts)
|Equivalent volume (Vas)
Click icons to download :
Data 3D View (large file)