Questyle M15i Hi-Res Lossless Portable DAC & Amp

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Dual Headphone Outputs for Versatile Listening

The M15i, equipped with four current mode amplification engines, supports both 3.5mm single-ended and 4.4mm fully balanced output modes. This versatility makes it compatible with a wide range of applications and devices, catering to various audio preferences and setups.

Crystal Clear Audio with Ultra-Low Noise Floor

Just as a pure black background enhances the vibrancy of colors, a low noise floor is essential for capturing audio details. The M15i boasts a high resolution that contributes to an ultra-low noise floor of -130dB, verified in Questyle Lab's testing environment. This ensures true high-fidelity sound reproduction.

Compact and Portable Design

The M15i's compact size makes it incredibly convenient for users on the go. Its portability ensures that you can enjoy high-quality audio anytime and anywhere, without the bulk of traditional DACs and amps.

Full Compatibility for True Lossless Enjoyment

Questyle Labs has optimized the M15i for compatibility with mainstream smartphones and tablets. It supports iOS, HarmonyOS, and Android versions 5.1 and above, as well as PC systems running Windows 10 version 18.3 and above (driver-free) and Mac OS. This broad compatibility allows Hi-Fi headphone users to enjoy lossless audio on streaming platforms seamlessly.

Apple MFi Certification for Enhanced Performance

The "i" in M15i signifies its Apple MFi certification, ensuring perfect compatibility with iPhone/iPad and the broader Apple ecosystem. This certification guarantees that the M15i meets Apple's strict standards for power consumption and compatibility, safeguarding your devices from potential damage caused by non-certified USB connections.

Dynamic Sampling Rate Display for Easy Monitoring

The M15i features a data status indicator that lights up during music playback. A single red indicator signifies PCM data with a sampling rate not exceeding 48kHz, while dual red indicators represent high-sampling-rate PCM data or DSD audio data. This feature allows users to easily monitor the sampling rate of their audio.

The Questyle M15i Portable DAC & Amp combines exceptional audio quality with versatile functionality and broad compatibility, making it an ideal choice for discerning audiophiles.

Material: CNC machined aluminium
Colour: Black
Size: 61.9mm x 27.9mm x 12mm

Android phones and tablets: Android 5.0 and above
PC: Win10 1803 and above
Apple cellphone: iOS (You need to buy an OTG cable for Lightning to USB-C)
Apple computer: Mac OS

PCM: PCM: 44.1kHz – 768kHz (16/24/32Bit)
DSD: DSD64 (1Bit 2.8MHz), DSD128 (1Bit 5.6MHz), DSD256 (1Bit 11.2MHz), DSD512 (1Bit 22.4MHz)

RL=300Ω | Po=11.97mW
Vout (Max)=1.895Vrms
RL=300Ω | Po=22.6mW
Vout (Max)=2.624Vrms

Frequency Response: ±0.1dB (20Hz-20kHz) | ±2dB (20Hz-80kHz)
THD+N: 0.0003%
DAC: ESS flagship USB DAC chip ES9281AC

M15i Mobile Headphone Amplifier with DAC
USB Type-C to Type-C Cable
USB Type-C to Type-A Cable
Warranty Card
User Manual

Warranty Period: 1 Year from the date of Invoice
Covered: Manufacturing Defects Only
Warranty Form:

Questyle Audio is a brand committed to exploring cutting-edge lossless audio technology, with the aim of offering perfect sound aesthetics and a seamless listening experience. We specialize in creating desktop and portable DAC & amplifier solutions, designed to enhance your audio experience to the fullest.

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