ScanSpeak D2905/9900 28 mm Dome Tweeter

The Revelator series has for years been celebrated for producing the best sounding electro dynamic transducers in the world. Since Scan-Speak was founded in 1970, the audio engineers and R&D experts working on the line have been on a quest to create drivers that reveal all the sound in recordings, hiding nothing from the listener. This quest has resulted in several revolutionary inventions that remove distortion in the magnet systems and in the moving parts of the speaker. The philosophy is that the sound has to be very dynamic, giving a perfect transient response and providing tonal balance.

In the Revelator tweeters, additional enhancements have been made to reduce distortion and power compression, and to optimize airflow in the chambers, producing several unique tweeter designs.

Driver Highlights: 1" soft dome, SD-2 motor, low compression design, non resonant chamber, machined aluminium faceplate.

The Scan-speak D2905/9900 is our state of the art tweeter. This "revelation" is a 1" textile dome tweeter that will reach new borders within high-end loudspeaker drive units. The new magnet system with SD caps and rings that eliminate the electrical phase shift. The new chamber design reduces air noises and compression. The 130mm machined aluminum front plate has more controlled directivity (down to 2Khz). The textile dome is hand coated and a special device is placed behind it to reduce dynamic compression.

TECHNICAL DATA:
Sensitivity 2.83V/1M 91dB
Free air resonance Fs 500 Hz
DC resistance 4.7 W
V.C. inductance 0.01 mH
Power 225W@2.8kHz
Effective cone area 8.5 cm2
V.C. diameter 28 mm
V.C. height -
Air gap height -

Lin. & max. excursion ±0.4/ ±1.5 mm
Air gap flux density -
BL 3.5 Tm
Moving mass incl. air 0.45 g
Net weight 0.8 kg

Outside diameter: 130mm
Cut out: 90mm
Depth: 48mm
25.4mm = 1" = 2.54cm