ScanSpeak D2908/714000

The very top tweeter with Beryllium menbrane from ScanSpeak. This model takes part in our program on modification the back chamber, so this gave us opportunity to look in its "internal world". Because the back chamber cover was glued with some kind of an unsoluble silicone-rubber glue, there was no any chance to take it off by a nondestructive way.

The THD measurements at voltage levels 2 - 5.6 V were carried out with High Pass Filter "on" (2nd order Buttreworth type, 500 Hz cutoff, HPF2-500)

The THD measurements at voltage level 8 V were carried out with High Pass Filter "on" (2nd order Buttreworth type, 800 Hz cutoff, HPF2-800)

The THD measurements at voltage level 11.2 V were carried out with High Pass Filter "on" (4th order Buttreworth type, 800 Hz cutoff, HPF4-800)