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  1. Questyle

    Questyle CMA18 Portable DAC with Headphone Amplifier

    Hi C4PPY -- The official documentation is coming very soon -- just proofing it now! Cheers Mike
  2. Questyle

    Introducing the Questyle M15 & the brand new Questyle Shop!

    Hi Nikola -- I checked with the tech department. Unfortunately, it is currently only possible to update M15 firmware on a Windows machine using the .rar/.exe files available on the Questyle downloads page - https://questyleshop.com/pages/downloads-1 Apparently this is due to the cost and...
  3. Questyle

    Experience the Questyle M15C Dongle

    —— Review by "The 3rd Ear Studio," a Chinese audio media Ten years ago, when Questyle was just establishing its brand, The Third Ear Studio began exploring its products. In recent years, Questyle's brand identity has changed from 'Questyle Audio' to 'Questyle,' marking its transition from...
  4. Questyle

    Questyle CMA18 Portable DAC with Headphone Amplifier

    I checked with the tech department -- there's no dedicated driver per se, but this one (attached) is applicable to CMA12, 15, 18P, and 18M. It can also be downloaded from - https://questyleshop.com/pages/downloads-1 as - "CMA Fifteen USB Drive" Cheers Mike
  5. Questyle

    Questyle CMA Fifteen — Official Thread

    Hi JooLoo -- I checked with our engineers, they say "CMA Fifteen does work as per the described scenario". Thanks! Mike
  6. Questyle

    Questyle CMA Fifteen — Official Thread

    Hi Smirk 24 -- Here are the headphone amplifier specs for the CMA Fifteen Master, taken directly from the latest promotional materials in July. 6.35 mm: 188 mW @ 300Ω 4.4 mm balanced / XLR 4-PIN balanced: 765 mW @ 300Ω THD+N <0.0003% @ 300Ω So I believe you should be fine with your...
  7. Questyle

    Questyle M12i / M15i USB DAC Review: The Charm of Current Mode Amplification

    The review article comes from the Korean media outlet Gamja sarada. In this review, we are going to discuss two USB DAC products launched by Questyle - the M12i and M15i. The main feature of these two devices is the integration of Questyle's proprietary CMA (Current Mode Amplification)...
  8. Questyle

    Apple MFi Certified! Improved Sound Quality Over Previous Generation - Discussing the Questyle M12i/M15i DAC and Headphone Amp

    The following review article is from Chinese media — Panda Wandering. Newly Upgraded Questyle has recently released upgraded versions of the M12/M15: the M12i/M15i. Compared to the previous generation, the M12i/M15i have obtained Apple MFi certification, providing perfect support for...
  9. Questyle

    Overview of the Questyle CMA18 Portable — Not an enlarged version of a dongle, but a scaled-down portable desktop DAC/AMP.

    The following review article comes from Chinese media - Alpaca. The first time I examined the Questyle CMA18 Portable was at the Wuhan Exhibition in October of last year. At that time, I didn't really have time to test it properly. Hence, I could only appreciate the exterior design. Given its...
  10. Questyle

    Questyle Prime Day Deals!

    Questyle Prime Day Deals! Many of Questyle's audiophile products are on sale today and tomorrow as part of the Amazon Prime promotion. Check Amazon for this and other deals!!
  11. Questyle

    Questyle CMA 18 Portable & M12i & M15i & NHB15 Review Tour [ USA, UK, Korea]

    We cordially invite you to join our upcoming audio products review tour! This is a rare opportunity for you to experience and evaluate our latest audio products firsthand. We look forward to your participation and valuable feedback. In the tour, we will provide four carefully selected audio...
  12. Questyle

    The Questyle NHB15

    A new generation of our NHB products has emerged! Questyle NHB15 From Studio to your Ears: Enjoy 192k Hi-Res Lossless Master Tape Music. In a minimalist way, Enjoying "Never Heard Before" True Lossless Sound Quality. When NHB15 is running and processing audio data with a sample...
  13. Questyle NHB15

    Questyle NHB15

    Experience True Lossless Sound with our premium NHB15 True Lossless Earphone In December 2023, Questyle unveiled the latest addition to the NHB IEM line: the NHB15 True Lossless Earphone. The NHB15 has significantly improved the USB interface compared to its predecessor - the NHB12. The...
  14. Questyle

    Questyle CMA18 Portable DAC with Headphone Amplifier

    You're very welcome, we'll try to do better about responding even more promptly in the future.
  15. Questyle

    Questyle CMA18 Portable DAC with Headphone Amplifier

    @someyoungguy @gto88 That's correct, only the first small batch of CMA18Ps that were released only in China did not have the charge & play function. Starting with the second batch, which began shipping internationally, this was resolved. @OneEyedHito Unfortunately no, those lights cannot be...
  16. Questyle

    The HiFi flagship portable DAC/amp sector welcomes another promising device! A Questyle CMA18Portable review.

    This review article, authored by Li Ling Jia Qi, originates from a Chinese media outlet. Emerging Voices Following the market acclaim of the portable DAC/amp units M12 and M15, Questyle has launched the higher-spec CMA18 Portable. Equipped with a 4600mA battery, it supports both wired and...
  17. Questyle

    What is Questyle's 'Current Mode Amplification'

    No driver is needed for Windows XP and Vista. Which version of Windows are you using?
  18. Questyle

    What is Questyle's 'Current Mode Amplification'

    Yep, Current Mode Amplification features an ultra-wide bandwidth and ultra-high-speed signal response, with their signal response speed being approximately 50 to 100 times that of Voltage Mode Amplification.
  19. Questyle

    What is Questyle's 'Current Mode Amplification'

    In the realm of audio, "Current Mode Amplification" acts as an embellishment to an already splendid tapestry. If one were to discuss its shortcomings, they would include its higher cost and the significant design challenges it presents.
  20. Questyle

    Comment by 'Questyle' in item 'Questyle M15i — Mobile Headphone Amp & DAC'

    Correct, there's no more MQA rendering in the M12i or M15i.
    • Questyle
    • Head Gear comment
  21. Questyle

    The New Questyle M15i and M12i

    Hello everyone! We at Questyle are very excited to announce the second-generation updates to our acclaimed M15 and M12: The Questyle M12i and M15i These update products feature a number of upgrades, including: Both products are now MFi certified, ensuring seamless integration into the...
  22. Questyle M12i — Mobile DAC/Amp

    Questyle M12i — Mobile DAC/Amp

    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...
    • Questyle
    • Head Gear item
    • 3.5mm se amp/dac current mode amplification mobile portable
    • Comments: 3
    • Reviews: 1
    • Category: Portable Amps
  23. Questyle M15i — Mobile Headphone Amp & DAC

    Questyle M15i — Mobile Headphone Amp & DAC

    Questyle M15i The Questyle M15i is the second-generation, MFi-certified update to our award-winning high performance portable M15 DAC/amp. M15i boasts near-universal compatibility with any mobile device or computer 3.5mm and 4.4mm output with selectable gain, provides higher level of power...
    • Questyle
    • Head Gear item
    • amp/dac current mode amplification mobile headphone amp
    • Comments: 24
    • Reviews: 5
    • Category: Portable Amps
  24. Questyle CMA18 Portable / CMA18P

    Questyle CMA18 Portable / CMA18P

    Accept every possibility, except compromise. Portability is no longer the opposite of performance. The Questyle CMA18P Desktop caliber performance, now portable The design goal of the CMA18 Portable is to create a portable Hi-Fi system for smartphones and laptops that strives to achieve...
    • Questyle
    • Head Gear item
    • 32bit akm4493 cma18p current mode amplification mobile amp pcm768 portable amp
    • Comments: 3
    • Reviews: 8
    • Category: Portable Amps
  25. Questyle

    What is Questyle's 'Current Mode Amplification'

    Perhaps this article might be able to answer some more of your questions. Gary Barker has summed it up quite nicely. https://headphone.guru/questyle-audio-cma400i-current-mode-true-dsd-dac-preamp-headphone-amplifier-peer-into-the-black-depths-of-music/ I'll repost the pertinent points here...
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