Questyle M15i Dual Headphone Amp

The M15i, equipped with four current mode amplification engines, supports 3.5mm single-ended and 4.4mm fully balanced output modes, making it suitable for a wide range of apps and devices. Ultra-Low Noise Floor, Pure Background Just as a pure black background can highlight the richness of colors, only a low enough noise floor can capture the details in the soundtracks, appreciating true high-fidelity. The high resolution of the M15i contributes to a lower noise floor, achieving an ultra-low noise floor of -130dB in the Questyle Lab's testing environment. Full Compatibility for True Lossless Enjoyment During the development, Questyle Labs conducted extensive testing and targeted optimization of M15i's compatibility with mainstream smartphones and tablets. Developers managed to achieve high compatibility with iOS, HarmonyOS, Android versions 5.1, etc. As for PC, it supports Windows 10 version 18.3 and above (driver-free) as well as Mac OS systems. Hence, all Hi-Fi headphone users can en