28mm Fabric Dome Treble
D2905/990000 Revelator, is a true high-end tweeter, with a magnet system using Scanspeak's Symmetric Drive technology, which almost eliminates electrical phase shift. A carefully designed chamber under the surround minimises air noise and compression and the Symmetric Drive copper caps also act as heat conductors.
The D2905/990000's high power handling is thanks to Ferro fluid in the air gap, which also improves micro-dynamic linearity and helps to reduce distorton. The large diameter front plate is machined to accurately control directivity down to 2kHz, thus making the Revelator ideal for use in 2-way, as well as 3-way systems.
The Revelator has become iconic over the last 10-15 years and is still one of the most outstanding treble units available at any price.
Faceplate Diameter: 130mm
Sensitivity (2.83v/1m): 91dB
Nominal impedance: 6 ohm
Frequency range: 2-25kHz
Free air resonance: 500Hz
DC resistance (Re): 4.7 ohm
Voice coil inductance (Le): 0.01mH
Effective piston area (Sd): 8.5cm
Moving Mass (Md): 0.45g
Force factor (BL): 3.5Tm
Excursion (lin-max): +/-0.4 - +/-1.5mm
Voice coil diameter: 28mm
Nominal power handling: 225w
Faceplate diameter: 130mm
Overall depth (front of faceplate to rear of chamber): 54mm
Faceplate thickness: 5mm
Fixing holes: 4 x 5mm diameter on 110mm PCD
Rear chamber diameter: 73.5mm
Price per single unit excluding VAT