This 26 mm dual ring radiator with centre phase plug has a low distortion response curve that extends effortlessly to above 40kHz. A double magnet system with tuned rear chamber yields an exceptionally low resonant frequency of just 440 Hz, which is a long way below the recommended crossover frequency - this tweeter is easy to use. A full datasheet can be downloaded from the bottom of this page.
The Discovery series offer the legendary Scanspeak superior sound at a favourable price point.
They combine a wealth of technical features & innovations; the sound quality to price ratio is superb.