Questyle M15i Headphone Amplifier with DAC

Questyle M15i Headphone Amplifier with DAC Product Description: 

Apple MFi Certified For Guaranteed Performance and Compatibility

The "i" in M15i signifies its Apple MFi certification, guaranteeing flawless compatibility and integration with iPhone/iPad within the Apple ecosystem. This certification meets Apple's strict standards for external devices concerning power usage and compatibility, safeguarding against potential harm to phones and systems due to incompatible device connections.

Equipped with Dual Current Mode Patent Amplification Modules, Ultra-Large Dynamics, Capable of Working at High Volume for Extended Periods Without Interruption

The M15i features dual "current mode" amplification SiP modules, a pioneering technology patented by Questyle Technology, aggregating to four current mode amplification engines. This setup ensures a robust and crystalline sound output. Operating within the current domain, the low impedance characteristic of the current-mode circuit allows for a bandwidth reaching up to 1MHz and achieves distortion levels as minimal as 0.0003%, unveiling the intricate nuances hidden within music tracks.

Thanks to the patented current mode amplification technology, incorporating TOREX's precision power management, the M15i boasts high efficiency and low energy consumption. This design significantly reduces the likelihood of overheating or disruptions during extended periods of listening, ensuring a seamless and enjoyable audio experience.

Ultra-Low Noise Floor, Pure Background, Enjoy Real Sound Anytime, Anywhere

Much like how a deep black canvas can accentuate the vibrancy of colors, it's only against the backdrop of a sufficiently low noise floor that the intricate details in soundtracks can be fully appreciated, embodying the essence of true high-fidelity audio. The M15i's advanced resolution plays a crucial role in minimizing background noise, achieving an exceptionally low noise floor of -130dB in the controlled testing conditions of Questyle Lab. This ensures that listeners can experience the full depth and clarity of their audio, capturing every nuance with pristine accuracy.

Full Compatibility for True Lossless Enjoyment

During its development, Questyle Labs conducted thorough testing and careful optimization to guarantee that the M15i would work flawlessly with the most commonly used smartphones and tablets. It achieved superior compatibility with a range of operating systems, including iOS, HarmonyOS, and Android (version 5.1 and up). Additionally, the M15i supports PC applications, being compatible with Windows 10 and later, as well as macOS. This extensive compatibility allows enthusiasts of HiFi headphones to enjoy premium, lossless audio content from their favorite streaming platforms, no matter where they are or which device they use.

Technology Without Boundaries

Questyle, in collaboration with ESS and research teams spanning the United States, China, and Canada, maintains an ongoing and fruitful partnership aimed at surpassing customer expectations in the realm of mobile decoding headphone amplifiers. The M15i boasts the latest ESS flagship USB DAC chip, the ES9281AC, offering support for D/A conversion up to PCM768 and DSD512—a significant upgrade from the first-generation M15, which supported up to PCM384 and DSD256. Additionally, enhancements in audio distortion performance and output power further elevate the M15i's capabilities compared to its predecessor.

The original M15 enjoyed remarkable success at Bloom, remaining a best seller throughout its lifecycle without experiencing any sales slowdown. With the introduction of the M15i, Questyle aims to build upon the popularity of its predecessor and deliver an even higher tier of premium audio enjoyment in a portable form factor, expanding the boundaries of portable audio excellence.

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