Description
Enjoy your music in style with the Questyle M15. This tiny DAC/Amp is packed with 4 CMA Amp engines and the flagship ESS ES9281AC DAC for a powerful performance and detailed sound output. It can decode all kinds of file formats and is the perfect partner for just about any source device.
Powerful Performance, Minimal Energy Consumption
Experience a strong audio output with the Questyle M15 Portable DAC/Amp. It features 2 patented CMA (Current Mode Amplification) SiP modules for a total of 4 CMA Amp engines. These engines have a low voltage operation, and minimal power consumption. They also have a naturally low impedance resulting in bandwidth up to 1MHz and a super-low distortion of 0.0003%.
Make Every Detail in your Music Come Alive!
Experience high-quality audio up to PCM384kHz/32bit and DSD256 with the highly acclaimed ESS ES9281AC flagship DAC chip. What’s more? The M15 has a noise floor that’s as low as -130dB.
Easy Connectivity
The Questyle M15 supports 3.5mm TRS (unbalanced) and 4.4mm TRRS (balanced) outputs thanks to its 4 CMA Amp circuits. The slider on the side allows you to adjust the gain to bring out the best in a connected headphone, speaker or HiFi system.
The Perfect Support
The M15 is compatible with systems above Android v5.1 on smartphones and tablets as well as Windows 10 v18.3 and MacOS for PC. It can decode ALAC, FLAC, MQA, and other lossless formats and works smoothly with almost every music streaming platform like Apple Music, Tidal and QQ Music, among others.
-DAC Capability:
PCM: 32kHz – 384kHz (16/24/32Bit)
DSD64 (1 Bit 2.8MHz), DSD128 (1 Bit 5.6MHz), DSD256 (1 Bit 11.2MHz) MQA Full decode
-Output Power:
3.5mm: RL = 300Ω, Po = 11.97mW, Volt (Max) = 1.895 Vrms, THD+N = 0.00045%
4.4mm: RL = 300Ω, Po = 22.60mW, Volt (Max) = 2.624Vrms, THD+N = 0.00057%
-Frequency Response and THD:
Frequency Response: ±0.1dB (20Hz-20kHz)
THD + N: 0.0003%
-DAC: ESS flagship USB DAC chip ES9281AC
-Output Interface -
3.5mm standard headphone jack x1
4.4mm balanced headphone jack x1
In The Box
1U M15
1U USB-A to USB Type-C cable,
1U Type-C to Type-C cable
1U 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.

One of the best portables in the market right now. Dont think twice if you have the budget. Just go for it. You wont regret. Yeah there are better things but for the price it is stellar dac/amp qnd punches above its competition.
The Questyle M15 is a compact yet powerful mobile HiFi DAC and amplifier. It delivers a clean and transparent sound. It avoids coloration and distortion, allowing music to shine without interference. Compared to other dongle DACs which I own like the Monolith and Dragonfly, the M15 maintains its clarity and fidelity. The M15’s standout feature is its excellent instrument separation. Each instrument occupies its own space, creating a spacious and detailed soundstage. The M15 packs a punch whether you’re using sensitive or power-hungry over-ears, the M15 adapts effortlessly. The inclusion of a balanced 4.4mm TRRS output ensures compatibility with a wide range of headphones. I am thoroughly enjoying using it. Not just a DAC. Not merely an amp. It’s a whispered promise—a symphony in your pocket. 🌟🎵
Thank you for your glowing review of the Questyle M15 Portable DAC & Amp! We are thrilled to hear that you are enjoying the clean and transparent sound it provides, without any interference. We also appreciate your comparison to other dongle DACs and how the M15 maintains its clarity and fidelity. We are glad that it adapts effortlessly to different headphones and that you are thoroughly enjoying using it. Thank you for choosing The Audio Store!
This amp dac is a mini power house. As mentioned by other reviewers, it can get really loud and can easily power 300 Ohms headphones like Sennheiser HD 650 and HD 600 etc.
Only nitpick would be the lack of custom EQ options, which are present in similar priced units like Lotoo Paw S2. However, just based on sound quality alone, it is indeed head and shoulders above the competition. It's battery consumption on my Samsung Galaxy S22 ultra is decent enough and doesn't seem to drain out battery. Overall, a worthy buy.
Thanks for the review! We're glad to hear that this little amp dac is a powerhouse, and the lack of EQ options is a minor quibble - in our opinion, the sound quality is worth the price. We hope you enjoy it!
Couldn't believe my ears. What a tremendous improvement from my previous DAC. My search ends here. I don't need to look for any alternative.
And the product is delivered in less than 24 hours. Thanks TAS for this great product and your superfast delivery.
Thanks for the kind words! We're glad you're enjoying your Questyle M15 Portable DAC & Amp.
In one word it is the one to beat. The sound is so subtle, so articulate so precise. Wait, it is for the connoisseurs of quality audio. You need to walk hundreds of miles to arrive at this destination.
Thank you for your review! We're glad you're enjoying the Questyle M15.
This is by far the best portable dac I’ve heard
In fact it sounds even better than the higher tier DAP
The sound is neutral, The treble is extended without being sharp or fatiguing
Needs some burn in initially to open up
Thanks to pritam for suggesting this gem
I’m truly loving this one
Highly Recommended
Thanks for the great review of the Questyle M15 Portable DAC & Amp! We're glad you're enjoying it. We especially appreciate the fact that you found it to be a neutral and helpful voice in your review. It's great to see reviewers who take the time to write thoughtful and constructive reviews.

Description
Enjoy your music in style with the Questyle M15. This tiny DAC/Amp is packed with 4 CMA Amp engines and the flagship ESS ES9281AC DAC for a powerful performance and detailed sound output. It can decode all kinds of file formats and is the perfect partner for just about any source device.
Powerful Performance, Minimal Energy Consumption
Experience a strong audio output with the Questyle M15 Portable DAC/Amp. It features 2 patented CMA (Current Mode Amplification) SiP modules for a total of 4 CMA Amp engines. These engines have a low voltage operation, and minimal power consumption. They also have a naturally low impedance resulting in bandwidth up to 1MHz and a super-low distortion of 0.0003%.
Make Every Detail in your Music Come Alive!
Experience high-quality audio up to PCM384kHz/32bit and DSD256 with the highly acclaimed ESS ES9281AC flagship DAC chip. What’s more? The M15 has a noise floor that’s as low as -130dB.
Easy Connectivity
The Questyle M15 supports 3.5mm TRS (unbalanced) and 4.4mm TRRS (balanced) outputs thanks to its 4 CMA Amp circuits. The slider on the side allows you to adjust the gain to bring out the best in a connected headphone, speaker or HiFi system.
The Perfect Support
The M15 is compatible with systems above Android v5.1 on smartphones and tablets as well as Windows 10 v18.3 and MacOS for PC. It can decode ALAC, FLAC, MQA, and other lossless formats and works smoothly with almost every music streaming platform like Apple Music, Tidal and QQ Music, among others.
-DAC Capability:
PCM: 32kHz – 384kHz (16/24/32Bit)
DSD64 (1 Bit 2.8MHz), DSD128 (1 Bit 5.6MHz), DSD256 (1 Bit 11.2MHz) MQA Full decode
-Output Power:
3.5mm: RL = 300Ω, Po = 11.97mW, Volt (Max) = 1.895 Vrms, THD+N = 0.00045%
4.4mm: RL = 300Ω, Po = 22.60mW, Volt (Max) = 2.624Vrms, THD+N = 0.00057%
-Frequency Response and THD:
Frequency Response: ±0.1dB (20Hz-20kHz)
THD + N: 0.0003%
-DAC: ESS flagship USB DAC chip ES9281AC
-Output Interface -
3.5mm standard headphone jack x1
4.4mm balanced headphone jack x1
In The Box
1U M15
1U USB-A to USB Type-C cable,
1U Type-C to Type-C cable
1U 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.

One of the best portables in the market right now. Dont think twice if you have the budget. Just go for it. You wont regret. Yeah there are better things but for the price it is stellar dac/amp qnd punches above its competition.
The Questyle M15 is a compact yet powerful mobile HiFi DAC and amplifier. It delivers a clean and transparent sound. It avoids coloration and distortion, allowing music to shine without interference. Compared to other dongle DACs which I own like the Monolith and Dragonfly, the M15 maintains its clarity and fidelity. The M15’s standout feature is its excellent instrument separation. Each instrument occupies its own space, creating a spacious and detailed soundstage. The M15 packs a punch whether you’re using sensitive or power-hungry over-ears, the M15 adapts effortlessly. The inclusion of a balanced 4.4mm TRRS output ensures compatibility with a wide range of headphones. I am thoroughly enjoying using it. Not just a DAC. Not merely an amp. It’s a whispered promise—a symphony in your pocket. 🌟🎵
Thank you for your glowing review of the Questyle M15 Portable DAC & Amp! We are thrilled to hear that you are enjoying the clean and transparent sound it provides, without any interference. We also appreciate your comparison to other dongle DACs and how the M15 maintains its clarity and fidelity. We are glad that it adapts effortlessly to different headphones and that you are thoroughly enjoying using it. Thank you for choosing The Audio Store!
This amp dac is a mini power house. As mentioned by other reviewers, it can get really loud and can easily power 300 Ohms headphones like Sennheiser HD 650 and HD 600 etc.
Only nitpick would be the lack of custom EQ options, which are present in similar priced units like Lotoo Paw S2. However, just based on sound quality alone, it is indeed head and shoulders above the competition. It's battery consumption on my Samsung Galaxy S22 ultra is decent enough and doesn't seem to drain out battery. Overall, a worthy buy.
Thanks for the review! We're glad to hear that this little amp dac is a powerhouse, and the lack of EQ options is a minor quibble - in our opinion, the sound quality is worth the price. We hope you enjoy it!
Couldn't believe my ears. What a tremendous improvement from my previous DAC. My search ends here. I don't need to look for any alternative.
And the product is delivered in less than 24 hours. Thanks TAS for this great product and your superfast delivery.
Thanks for the kind words! We're glad you're enjoying your Questyle M15 Portable DAC & Amp.
In one word it is the one to beat. The sound is so subtle, so articulate so precise. Wait, it is for the connoisseurs of quality audio. You need to walk hundreds of miles to arrive at this destination.
Thank you for your review! We're glad you're enjoying the Questyle M15.
This is by far the best portable dac I’ve heard
In fact it sounds even better than the higher tier DAP
The sound is neutral, The treble is extended without being sharp or fatiguing
Needs some burn in initially to open up
Thanks to pritam for suggesting this gem
I’m truly loving this one
Highly Recommended
Thanks for the great review of the Questyle M15 Portable DAC & Amp! We're glad you're enjoying it. We especially appreciate the fact that you found it to be a neutral and helpful voice in your review. It's great to see reviewers who take the time to write thoughtful and constructive reviews.
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OUR HONEST REVIEWS FROM THE CO-FOUNDERS & AUDIOPHILES
View allTRUSTED BY OVER 35K+ MUSIC ENTHUSIAST
Let customers speak for us
from 5126 reviewsQuality

The amount you pay for this DAC is absolutely worth it. I'm using it with my PC, and I also have a Fiio KA13. It provides 32-bit 48000Hz audio output, and it's really good. I'm connecting it via a USB-C port and one extension cable (AGARO 3.5mm Aux Male to Female Extension Cable, Gold Plated). There’s no audio loss whatsoever.
The only minor issue is when you use it with a mobile device — the blue light can be a bit annoying. However, that's more of a personal preference. It also makes some noise with certain songs, but that's actually a known issue with the CS46L41 chip. There's no need to worry though; unless you've used a high-end DAC before, this will be more than enough for you.
Bass and clear vocals
😊
Excellent sound quality

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 supports PCM (loss less stereo output) and Digital compress audio multichannel only) these are specific to Sony X-80J 65 inches

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