Questyle M12i — Mobile DAC/Amp

General Information


Questyle M12i

The Questyle M12i comes as a successor to the highly-acclaimed M12 that came out in 2021, with improved sonic capabilities, better aesthetics, and MFi certification.

  • Automatically detects impedance for improved performance with a variety of headphones
  • Can handle up to PCM768kHz/32bit and DSD512
  • Optimizes power consumption to prevent premature phone battery drainage
  • USB-C input and 3.5mm headphone output
  • And all at a price point easy on any wallet


Supports high resolution sound
The M12i features the highly acclaimed ESS ES9281AC flagship DAC, which can handle up to PCM768kHz/32bit and DSD512.The M12i breaks through the limitations of integrated audio circuits in phones in terms of technology, cost, and size.


MFi certification
The "i" in M12i indicates that it has been certified by Apple's MFi. MFi certification ensures perfect support for iPhone/iPad and seamless integration into the iOS and macOS ecosystem. It complies with the stringent requirements for external devices in terms of power consumption and compatibility, avoiding the risk of damage to phones and systems from arbitrary USB device pairings.


Full Compatibility
The M12i USB DAC headphone amplifier with optimized HiFi audio architecture ensures High-Resolution sound quality. The portable USB DAC compatible with various systems like Android/iOS/Windows/Mac, compatible with the latest devices: phones/computers/tablets/laptops/audio players, etc. Wonderfully versatile when commuting in the home, office, or gaming.


Ultra-Low Noise Floor
Thanks to the patented Current Mode amplifier technology, M12i's noise floor is below -130dB, ensuring no noise when listening to music with high-sensitivity earphones.M12i has an extremely wide frequency response of over 80kHz, making it a true Hi-Res device.Clean sound for a great sound, featuring abundant power with high signal-to-noise ratio, low distortion, and almost 0 noise – this is true high-fidelity sound.


Comparison to predecessor M12
Apple MFi certification, ensures high performance and compatibility with iPhone/iPad and the Apple ecosystemno Apple MFi certification
supports up to PCM768 and DSD512supports up to PCM384 and DSD256, plus MQA support
Data status indicator:
1)single red indicator lights up means sampling rate≦48Khz
2)dual red indicators lights up means sampling rate >48Khz
Data status indicator:
1)green indicator lights up means PCM data stream
2)red indicator lights up means DSD data stream
3)magenta indicator lights up means MQA data stream
Gain status indicator:
1)single red indicator lights up means Standard Gain
2)dual red indicators lights up means High Gain
Gain status indicator:
1)green indicator lights up means Standard Gain
2)red indicator lights up means High Gain



Compatible Operating Systems
  • Android Phones and Tablets: Supports devices running Android 5.0 and above
  • PC Systems: Compatible with devices running Windows 10 version 1803 and above
  • Apple Phones: Supports iOS systems (Requires additional purchase of the Questyle LTC02 Lightning to Type-C adapter when connecting to devices with a Lightning interface.)
  • Apple Computers: Compatible with macOS systems

D/A Conversion
  • 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)

  • 3.5mm single-ended headphone jack
  • Built-in smart impedance detection circuit
    • RL=16Ω, Po=19mW;
    • RL=32Ω, Po=21mW;
    • RL=300Ω, Po=12.26mW;
  • When M12 detects an impedance less than 70Ω, it automatically sets to low-gain output; When greater than 70Ω, it automatically sets to high-gain output, and for 600Ω
    and above, it automatically switches to 2Vrms line output.
  • Frequency Response: ±0.1dB(20Hz-20kHz); ±2dB(20Hz - 80kHz)
  • THD+N: 0.0003%

  • Exterior Material: CNC Anodized Aluminum Alloy
  • Color: Black
  • Dimensions: 56.9L × 20.2W × 9.5D(mm)


What's In The Box
  • M12i USB DAC Headphone Amp
  • Type-C to Type-C cable
  • Type-C to USB-A Converter
  • User Manual & Warranty Card


Where to Find

— From Shenzhen with ❤️
Newest logo-01 smaller.png

Latest reviews


500+ Head-Fier
Questyle M12i.
Pros: - Surprisingly good driving power
- Clean analog, organic sound yet exceedingly technical
- Power efficient on weak USB hosts, even Apple iPhones
- Adaptive gain modes
Cons: - No independent volume adjustments
- Only comes in 3.5mm SE (not a problem for me personally)
DSC02057 Cropped.jpg

Simple, elegant, well build. Three years after the release of the highly successful M12, Questyle M12i is here, designed to be more friendly with Apple MFi standards, but more importantly offering refinement as well on what was already an impressive DAC/Amp of M12.

In general, M12i is surprisingly powerful for such lowly advertised power, practically standing tall when compared against over 2400mW juggernauts of BURSON Audio Playmate 2 (V7) and the stack of JDS Labs Atom DAC2/Amp2. While it can't replace the powerful desktop DAC/Amps, it does offer viable alternative to even drive Sennheiser HD600 and HiFiMan Sundara with good agility, synergy and dynamic transients' authority. I can totally use M12i away from my desktop driving these headphones.

The sound tuning for M12i is admirably natural, devoid of any hint of being metallic or sterile, as would normally be observed from ESS Sabre native tuning. M12i is exceedingly analog/organic sounding as it is competently technical to compete with the best of the best in dongle space category.

Join me here on my YouTube Channel as I unravel the wonders of Questyle Current Mode portable DAC/Amp:
Hello @OspreyAndy ,
I'm looking for a portable DAC+AMP for use with laptop and android phone.
I'll bei using 3.5mm with IEMs and headphones up to DT880 600 Ohm
RME FireFace 800 is my sound reference, it is powerful yet neutral in all regards, no HiFi enhancements anywhere, converters are AKM.
I guess what you describe as "analogue" / "natural" sound reproduction is what I'm looking for, also it's important for me to have good resolution as I'll be using it to produce & mix music.
Which one would you pick:
Colorfly CDA M1P - 75€
EPZ TP50 - 120€
Questyle M12i - 140€
I already tried FIIO KA13 but had to return it since it had weak bass (didn't sound neutral at all) and overcooked highs, despite the amazing resolution.
Even toying with the idea of just getting an M15i as it's 225€ on HiFiGO but I don't know whether the upgrade is worth it over M12i if I will basically only be using 3.5mm at the moment...
DT880 has an attached 3.5mm cable.
I often have a hard time discerning from reviews whether the device actually has better performance overall or the improvement is just on 4.4mm balanced output.
For example, I've read 3.5mm on M15 sounds worse than 4.4mm bal.


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