Solving the problems inherent in coaxial loudspeakers as well as two-way or more-way systems the YOCTO radiates sound in space from a single diaphragm with consistent directivity and high-end performance representing something as an ideal in loudspeaker design. There is no crossover point between midrange and tweeter and this has consistent advantages in terms of performance. Another improvement is the absence of any decoupling technology between the driver and the cabinet because the driver is part of a strong and stiff CNC machined aluminum enclosure. The distinctive shape of the enclosure eliminates diffraction present in loudspeakers that have a baffle hosting numerous drivers granting an almost perfect interaction with the listening room and opening new opportunities in multi-speaker systems & 3D panning / MPEG-H 3D Audio.

Furthermore, the back radiated energy of the diaphragm is diffused into 5 concentric channels milled around the diaphragm area: back radiated energy flows into those channels and around a slug-type magnet instead of bouncing back and hitting the diaphragm.

YOCTO is meant to be crossed at 100Hz 24dB/Octave and to be coupled to a dedicated subwoofer such as the Lange Loudspeakers TERA. Small loudspeaker diaphragms can’t overcome the laws of physics and reproduce efficiently low frequencies unless they are implemented into horns or transmission lines. Low frequency horns as well as transmission lines add energy to the diaphragm either by coupling or by resonating. Coupling to the air is what horns do and this implies a phenomenon called reactance; resonating as the word suggests is a resonance artifact that is interpreted as loudness. Both reactance and resonance are phenomena in contrast with high end reproduction.

The YOCTO is an entirely Aluminum CNC machined loudspeaker as well as the most compact model Lange Loudspeakers SA is introducing in 2022, hence its name YOCTO, which corresponds to One Septillionth of a unit in the SI Metric System. The transducer incorporates different advances and reinterpretations of loudspeaker manufacturing techniques. From a CNC machined diaphragm to a CNC-machined frame and a dedicated, individually tuned passive network every detail has been carefully considered to achieve the best possible performance.

YOCTO is designed and manufactured by Lange Loudspeakers SA in Switzerland, including the drive unit.