supertweeters

Supertweeters are a type of loudspeaker driver designed to reproduce very high audio frequencies, typically above 10 kHz and extending well beyond the range of human hearing. They are so named because they are intended to cover frequencies significantly higher than those produced by standard tweeters. Their primary role is to add airiness, detail, and realism to the sound reproduction.

These drivers often utilize exotic materials for their diaphragms, such as beryllium, diamond, or advanced ceramics, to achieve the necessary stiffness and lightness for efficient high-frequency response. Common designs include dome tweeters, ribbon tweeters, and planar magnetic tweeters, each employing different methods to move air and create sound waves. The precise construction of the diaphragm and the magnetic system are critical for minimizing distortion and maximizing transient response at these extreme frequencies.

The use of supertweeters in audio systems is a subject of debate. Proponents argue that even ultrasonic frequencies (above 20 kHz) can influence audible sound through intermodulation distortion or by affecting the listener's perception of soundstage and spatial cues. They suggest that including supertweeters can reveal subtle nuances in recordings that would otherwise be missed. Opponents contend that frequencies above human hearing have no direct impact on the perceived sound and that the inclusion of supertweeters offers no sonic benefit, potentially even introducing unwanted coloration or complexity to the audio chain. Ultimately, their effectiveness is often subjective and dependent on the recording, the rest of the audio system, and the listener's individual perception.