Description
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.
APPEARANCE
Material: CNC machined aluminium
Colour: Black
Size: 61.9mm x 27.9mm x 12mm
COMPATIBLE OPERATING SYSTEMS
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
DAC CAPABILITY
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)
OUTPUT POWER
3.5mm:
RL=300Ω | Po=11.97mW
Vout (Max)=1.895Vrms
4.4mm:
RL=300Ω | Po=22.6mW
Vout (Max)=2.624Vrms
FREQUENCY RESPONSE & THD
Frequency Response: ±0.1dB (20Hz-20kHz) | ±2dB (20Hz-80kHz)
THD+N: 0.0003%
DAC: ESS flagship USB DAC chip ES9281AC
IN THE BOX
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: https://www.theaudiostore.in/pages/warranty-claim-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.
Best killing audio sound👌
Description
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.
APPEARANCE
Material: CNC machined aluminium
Colour: Black
Size: 61.9mm x 27.9mm x 12mm
COMPATIBLE OPERATING SYSTEMS
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
DAC CAPABILITY
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)
OUTPUT POWER
3.5mm:
RL=300Ω | Po=11.97mW
Vout (Max)=1.895Vrms
4.4mm:
RL=300Ω | Po=22.6mW
Vout (Max)=2.624Vrms
FREQUENCY RESPONSE & THD
Frequency Response: ±0.1dB (20Hz-20kHz) | ±2dB (20Hz-80kHz)
THD+N: 0.0003%
DAC: ESS flagship USB DAC chip ES9281AC
IN THE BOX
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: https://www.theaudiostore.in/pages/warranty-claim-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.
Best killing audio sound👌
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Let customers speak for us
from 5103 reviews
After searching internet found this dac which has multiple input options and support 165*2 watts passive speakers and 350 watt passive subwoofer for future extension, tested with all input modes, bluetooth input feels a bit of low quality as it only supports sbc and aac codecs only, however if you want to use mobile via wired, alternative option is to use audiocular d08 cs-pro usb-c to 3.5 mm and 3.5 mm to rca input (cable creation brand). Optical input mode is not yet tested, will update review after few days.

Thanks a lot Pritam Ji for suggesting me to use a balanced cable with my Moondrop Aria IEMs and thanks a lot for ordering Moondrop Aria filters for me. The Audio Store goes out of the way to serve Indian audiophile community.
The way my IEMs sound with a balanced cable and Shanling UA2 Plus DAC & Amp are unprecedented!
I am grateful Pritam Ji. 🙏🏻

The empathetic support that I got (as a budding audiophile) from Pritam Ji at The Audio Store is unparalleled. I am grateful Pritam Ji. 🙏🏻

Just bought it and started using it with my IFI Zen Stack - feels awesome.
This was a natural pick for me, since I wanted to have a completely balanced setup for my HiFiMan Sundara.
Nothing much to add, if you want an optimal balanced setup without spending too much, then look no further.
Thanks AudioStore for being blazing fast with your delivery. I got it withing 48 hours of placing my order! Kudos.

For my HiFiMan Sundara, this is a nice quality 4.4 mm balanced cable. I am buying this for the second time, since the first one got destroyed by my kids.
If you are looking for a good quality 4.4 mm balanced cable, look no further.
Audio

This product is reached my expectation good purchase good audio signal transmission no noise at all.....thank you the audio store👍
Yes

I have used lots of TWS even high end of Samsung and Oppo worth 10K. But IEM sound signature is great! This is my second IEM. I had KZ-ZEX. It has dual driver with electrostatic. Compare with that MoonDrop Chu 2 is better clear and smooth sound signature even with single driver. I am using with Audiocular DAC cost 750. Just go with MoonDrop Chu 2 if you are music lover. Thanks.
Great packaging and quick delivery
Loved the theme of the store and the support of the customer service for every problem I faced. I would be interested in buying new things from the audio store in future.
Good Quality and got a clear case for the player.
Thank you 😊

The quality is great, I felt that the base got a bit reduced and mids and treble enhanced using the same. They look premium. The only downside is that they are slightly bulky as the cable is 16 core and sometimes you can feel it behind the ears. Overall a great cable to upgrade your entry level iems to support balanced output

After going through many websites, I came to know about this particular dac, which is purely oriented on audio amplification with dedicated chip unlike other dacs available under 2k, so ordered and received in two days, to my surprise it has significantly enhanced the audio experience on oneplus 13R, with wired earphones (redmi hi-res of 500 INR), usb type a to c adaptor really came into handy and detected as HiFi audio in my dell laptop, cherry on the cake was the pouch, I didn't expect a pouch, very happy with the purchase...

Visited thier store cum experience center it was very great place for sound lovers . Especially like their display of products in thier demo room.The Owner /Staff were cooperative and also suggested me several IEM's before i select one.