TANCHJIM OLA II In-Ear Monitors IEM

The TANCHJIM OLA II are hybrid in-ear monitors combining a 10mm DMT 5 dynamic driver with a dual magnetic circuit and dual acoustic chamber with a PURE Hi balanced armature dedicated to very high frequencies, using a coaxial hybrid acoustic architecture that promotes coherent reproduction from bass to treble.

The OLA II feature a total harmonic distortion of just 0.03% at 1kHz / 94dB, an impedance of 30 Ω ±10%, a sensitivity of 121dB/Vrms and an extended frequency response from 8Hz to 48kHz. Its internal acoustic chamber, optimized through simulation, promotes more accurate reproduction of transients and musical details, while its ergonomic design was developed using artificial ear data and more than 3000 ear-shape samples to optimize the nozzle angle, shell curvature, contact points and weight distribution. An external vent structure also helps limit pressure buildup.

The detachable cable uses silver-plated copper Litz conductors arranged in a twisted structure and connects to the earphones via 0.78mm 2-Pin connectors. The version equipped with an unbalanced 3.5mm jack connection also features a Goertek MEMS microphone designed to improve voice clarity during calls, online meetings, gaming sessions and voice communications.

The OLA II are therefore designed to provide detailed reproduction, low distortion and good coherence between different frequency ranges, while maintaining a format suitable for extended listening sessions.