Questyle M18i Mobile Headphone Amplifier with DAC

Questyle M18i supports Snapdragon Sound.

The M18i redefines the limits of portable audio with a revolutionary miniaturized architecture, packing flagship-grade components into an ultra-compact body. For the first time, a desktop-class TTA three-stage decoding architecture has been integrated into a mobile device. It features two SiP modules of Questyle’s patented four-set “Current Mode” amplification technology and dual ESS flagship DACs (ES9219Q), adopting a dual-DAC mono decoding design. The M18i supports both USB DAC mode and dual-mode lossless Bluetooth, offering seamless switching between wired and wireless use cases. With powerful driving capability, it effortlessly powers top-tier in-ear and over-ear headphones, unleashing their full sonic potential.

Equipped with an intelligent battery management system and an Infineon microphone, the M18i delivers exceptional performance within a compact form factor. It is also the first flagship portable DAC/amp to support all three of the following certifications: Qualcomm Snapdragon Sound, Apple MFi, and Sony LDAC—ensuring ultimate compatibility for demanding users.

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