The EVE Audio SC305 monitors is a 3-way monitoring solution in a compact cabinet with a wide frequency range from 50 Hz – 21 kHz, and a maximum SPL of 108dB. The tweeter, as with all EVE Audio monitors, is an AMT tweeter. AMT stands for Air Motion Transformer.  Unlike a dome tweeter (which moves forward and backward in a “piston” motion), an AMT uses a folded (pleated) diaphragm. The diaphragm (often a lightweight film) has conductive traces and is placed in a strong magnetic field. When driven by the audio signal, the folds expand and collapse (laterally) like a bellows, squeezing air between them. That accelerated air is pushed out, producing sound. Because of the folding, the effective drive area is increased, and the motion needed is small, which tends to allow for fast transient response and lower distortion.

What does this all mean? AMTs tend to reproduce very high frequencies well, with clarity. Because of smoother response and lower distortion in the high end, AMTs often feel “easier” to listen to over long sessions — less harshness especially at higher volumes. Importantly for producers and mix engineers this means less listening fatigue.

Subtle things like air, overtones, harmonics, fine transient detail tend to come through more clearly with a well-implemented AMT. This helps in mixing, mastering, critical listening.