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Questyle M15i

Questyle M15i
Questyle M15i
Questyle M15i
Questyle M15i
Questyle M15i
Questyle M15i
Questyle M15i
Questyle M15i
Questyle M15i
  • Stock: In Stock
  • Brand: Questyle
  • Model: M15i
Product Views: 279

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Questyle M15i ES9281AC DSD512 768kHz 3.5mm/4.4 Balanced HiFi Portable USB DAC Headphone Amplifier


Dual headphone outputs

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.


Super convenient

The tiny M15i is very convenient and can be taken anywhere.


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 enjoy lossless audio on streaming platforms anytime, anywhere.


Apple MFi Certification Ensures High Performance and Compatibility

"i" in M15i indicates that it has been certified by Apple's MFi program. MFi certification ensures perfect compatibility with iPhone/iPad and the Apple eosystem. It meets Apple's strict requirements for external devices in terms of power consumption and compatibility, avoiding the risk of damage to phones and systems caused by arbitrary connections of USB devices.


Supporting Dynamic Sampling Rate Display

When playing music, the data status indicator will light up.

▪ A single red indicator means PCM data with a sampling rate not exceeding 48kHz.

▪ Dual red indicators represent high-sampling-rate PCM data or DSD audio data.


Alloy Shell

Transparent panel minimalist display, elegant and exquisite.



ESS Signature USB DAC Decoder Chip: ES9281 AC

Supports the highest decoding capacity: PCM 768kHz/DSD512

4 Groups Current Mode Amplifiers

TOREX precision power management technology

Resistance: 80-600Ω

Noise Floor < -130dB

THD + N=0.0003% Ultra-Low Distortion




Type-C to Type-C Cable

Type-C to USB-A Adapter

User Manual

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All listed items will be shipped through Registered Airmail with tracking number if there is no extra shipping option or shipping description at the product page.

Economy shipping: Will be shipped without tracking number.(because of the covid-19 affects, economy airmail parcel is easy to lose, pls place the order by choosing registered airmail, or you purchase one more product , we can send together via registered airmail)

Registered Airmail : Will be shipped via such as Hong Kong post , Singapore Post, you can leave us a message if you have any requirements about the shipping method .

We can ship the parcel to Canada and Europe countries via tax-inclusive shipping method with extra charge, pls leave us a message if needed.

Express service: Will be shipped via DHL/EMS/UPS/FedEx,Canada and Europe countries will be shipped via tax-inclusive shipping method for free.

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