M15i Headphone Amplifier [MFi Certified] Portable USB DAC Amps with 4.4mm and 3.5mm Dual Outputs Supports PCM 768kHz/DSD512 High Resolution Lossless for Smartphones/PC/Laptops
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Eligible for Return, Refund or Replacement within 30 days of receipt
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
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Availability:
In Stock.
Arrives
Thursday, Jul 17
Recently Viewed
Color: Black
Features
- [Supports high resolution sound] The M15i features the highly acclaimed ESS ES9281AC flagship DAC, which can handle up to PCM768kHz/32bit and DSD512. Its almost inconceivable that something as small as the M15 can process and reproduce such demanding audio formats.
- [Dual headphone outputs]The M15i, equipped with four current mode amplification engines, supports 3.5mm single-ended and 4.4mm fully balanced output modes. It also features manual gain adjustment, allowing users to choose the gain mode according to personal preferences, headphone characteristics, or the audio system, making it suitable for a wide range of apps and devices.
- [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.
- [Without Interruption]The M15i contains two groundbreaking "current mode" patent amplification SiP modules developed by Questyle Technology. Given that it operates in the current domain, the low impedance characteristics of the current-mode circuit result in a bandwidth of up to 1MHz and distortion as low as 0.0003%, capturing details hidden in the soundtracks.As a result, the risk of overheating or interruptions during long listening sessions is extremely low thanks to the patented current mode amplification, TOREXs efficient power management system, as well as the M15is high-performance and low-power consumption.
- What You Get: M15i USB DAC Headphone Amp x1, Type-C to Type-C cable x1,Type-C to USB-A Converter x1 , user manual x1, our worry-free 12-month warranty, and friendly customer service.
- NoteWhen connecting to Lightning interface devices,you can purchase an additional Questyle LTC02 Lightning to Type-C adapter that has been officially certified by Apple MFi.
Brand: Questyle
Model Name: M15i
Color: Black
Form Factor: In Ear
Connectivity Technology: Wired
Wireless Communication Technology: RF
Special Feature: Lightweight
Included Components: Cable
Age Range (Description): Adult
Material: Metal
Headphones Jack: 3.5 mm Jack
Number of Items: 1
Product Dimensions: 2.44 x 0.47 x 1.09 inches
Item Weight: 3.84 ounces
Item model number: M15i
Date First Available: October 1, 2023
Manufacturer: Questyle
Country of Origin: China
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Thursday, Jul 17
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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- PayTomorrow Financing
- Financing through Apple Pay
Learn more about financing & leasing here.
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Top Amazon Reviews
Color: Black
This is absolutely amazing. The new M15i is just unbelievable quality by Questyle. It is so tiny you can take it anywhere, however the quality and sound, even on 250 ohm headphones is just unbelievable. Using 250ohm Beyer DT770's (which is an excellent closed back inexpensive headphone) to my $3500 Hifiman HE1000se open back monsters, this little guy drives em all and with such quality. Being able to use this with your mobile phone, tablet and pc is a huge bonus, however if you want to use this for just about everything in place of a desktop amp/dac you totally could do it, the sound is that good. This is a just go buy it review, I cannot really find any negatives whatsoever . . . 🎧👍🫶
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Reviewed in the United States on March 4, 2024 by TBonez
Color: Black
This is my first time purchasing a DAC/headphone amp (dongle type as well), always heard about the hype in how they can improve your sound to your IEMs/headphones and frankly, they are not lying! I have a ATH-M50X and that headphone tends to be flat in sound/neutral across the frequency spectrum. I noticed when I tested the M15i with my laptop and phone, it definitely gave a little more life to the bass and treble, the mids were neutral. There was definitely an improvement in terms of clarity and soundstage in my opinion, but in the end, everyone's ears are different. Build quality has a good feel to it. Am I happy with the product so far? Yeah, you can say so. Price? I am not so sure, since I kinda got away with it due to a huge discount and Amazon rewards. An added bonus to this is that this DAC can help my music production while I am on the road. 4.5/5
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Reviewed in the United States on March 14, 2024 by Jonas
good
Reviewed in the United States on January 29, 2024 by Grayson
Color: Black
The media could not be loaded. I tested a number of dongle dacs (ifi Kensai and gold bar, audioquest dragonfly cobalt, and even portable daps that cost a lot more). I am using sennheiser hd650, Audeze 109 pro, AKG flagship IEMs, and even my Focal Utopia headphones. The Questlye M15i is amazing with all these. It is best in class and performs multiples over its price. Form factor is small and tidy and visually compelling. All the audiophile attributes I was looking for (plenty of power which is where most dongle dacs fail; imaging, dynamics, frequency extension, body, presence, etc). I am very pleased and surprised (given low cost) with this unit.
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Reviewed in the United States on April 4, 2024 by D. Podeschi D. Podeschi
Unless you have your phone in airplane mode, you’ll hear terrible noise picked up by this DAC. My other DACs don’t have this issue (Shanling UA5 and FiiO Q7). When you’re not hearing the noise, it’s quite nice sounding.
Reviewed in the United States on January 7, 2024 by Noah Bershatsky
I bought this mainly to stream MQA & higher quality music on Tidal and drive my HD660S2 on the 4.4mm balanced output. I am thoroughly impressed by the power and sound quality of the M15, and highly recommend it! Something not many people seem to realize is this also puts out significantly more power when connected to a PC USB port compared to a phone or other mobile device with battery saving constraints. Compare and hear it for yourself!
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Reviewed in the United States on December 21, 2023 by Brandon
Color: Black
If you care about music just get this DAC. Probably the best portable headphone DAC/AMP I’ve ever heard. This is how the music is supposed to sound. If you’re using an iPhone with lightning connection be sure to get their additional cord, as it will not work with your standard apple lightning to usbc.
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Reviewed in the United States on February 25, 2024 by Ryan Morgan
I have been looking for the right amplifier for my custom IEMs forever. I finally found the one that can drive my Ultimate Ears 18+ well that brings out the soundstage and bass.
Reviewed in the United States on February 10, 2024 by Jeff Jeff