Monitoring
A tweeter is a loudspeaker driver designed to reproduce the high-frequency portion of the audio spectrum, typically from about 2 kHz to 20 kHz. It delivers clarity, detail, and brightness, handling the upper harmonics that define the texture and realism of sound.
Tweeters are small, lightweight transducers optimised for fast, precise movement to accurately reproduce high-frequency sounds such as cymbals, strings, and vocal sibilance. Their diaphragms are usually made from materials like fabric, aluminium, titanium, beryllium, or composite films. Because high frequencies require minimal air displacement, tweeter diaphragms are much smaller than those in woofers or midrange drivers, often ranging from 19 mm to 38 mm in diameter.
Several tweeter designs are used in professional and consumer loudspeakers. Dome tweeters, the most common type, offer smooth dispersion and wide frequency response. Ribbon tweeters use an ultra-thin metallic ribbon suspended in a magnetic field, providing extremely fast transient response and extended high-frequency detail. Horn-loaded tweeters improve efficiency and directivity, making them ideal for high-output systems such as PA speakers. Planar magnetic and electrostatic tweeters are also used in specialised high-fidelity applications for their exceptional clarity and low distortion.
Tweeters are protected from low-frequency signals by a crossover network, which filters out unwanted energy that could cause damage or distortion. The crossover point is typically set between 2 kHz and 4 kHz, depending on the design of the loudspeaker system.
Accurate tweeter performance is essential for tonal balance, stereo imaging, and the perception of air and space within a mix. Poorly designed or misaligned tweeters can cause harshness or fatigue, while high-quality units contribute to a transparent, detailed, and natural listening experience.
