FiiO QX13 – Portable DAC/Headphone Amp with ES9027PRO & 900 mW Output

FiiO QX13 – Portable DAC/Headphone Amp with ES9027PRO & 900 mW Output

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Product Description (English) Bring desktop-class audio performance to your pocket with the FiiO QX13. This premium portable DAC and headphone... Read more

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    Description

    Product Description (English)

    Bring desktop-class audio performance to your pocket with the FiiO QX13. This premium portable DAC and headphone amplifier combines high-resolution decoding, powerful amplification, and a vivid color display in an ultra-compact form factor that works seamlessly with smartphones, tablets, and computers.

    Key Features

    • Flagship ESS DAC – Equipped with an ES9027PRO DAC chip and XMOS XU316 USB processor for ultra-low noise, high dynamic range, and support for PCM up to 32-bit/768 kHz, DSD512 native, and full MQA decoding.

    • Powerful Amplification – In desktop mode delivers up to 900 mW ×2 @ 32 Ω through the 4.4 mm balanced output, easily driving demanding headphones; also provides 3.5 mm single-ended output.

    • Dual USB-C Ports – One for data, one for dedicated power, allowing enhanced output and lower noise when used at a desk.

    • 1.99-inch Color Display – Shows format, sample rate, gain, filter, and EQ settings with intuitive menu navigation.

    • 10-Band Parametric EQ & Filters – Customize your sound with flexible EQ presets and multiple digital filter options.

    • Premium Build – Carbon-fiber or aluminum alloy housing with magnetic leather case for secure attachment to your phone or DAP; compact design for true portability.

    • Versatile Connectivity – Works with Android, iOS (via adapter), Windows, macOS, and supports coaxial output (3.5 mm combo) for digital passthrough.

    Specifications

    • DAC Chip: ESS ES9027PRO

    • USB Processor: XMOS XU316

    • Sample Rates: PCM 32-bit/768 kHz, DSD512 native, MQA full decoding

    • Outputs: 3.5 mm single-ended / 4.4 mm balanced headphone jacks, 3.5 mm coaxial digital out

    • Output Power (Desktop Mode): up to 900 mW ×2 @ 32 Ω (balanced); ≥440 mW ×2 @ 16 Ω (single-ended)

    • SNR: ≥124 dB (A-weighted)

    • THD+N: <0.0004% (1 kHz, –2 dB @ 32 Ω)

    • Frequency Response: 20 Hz–90 kHz (–2.8 dB)

    • Display: 1.99-inch LCD, 170 × 320 pixels

    • Dimensions: ~64.2 × 30.7 × 13 mm

    • Weight: Carbon fiber ~33.7 g / Aluminum ~39.2 g

    • Power Supply: 5 V ≥1 A (via USB-C)

    Why You’ll Love It
    The FiiO QX13 gives you the freedom to enjoy studio-grade sound anywhere, whether you’re commuting with IEMs or sitting at your desk with full-size headphones. Its desktop mode, powerful balanced output, and vivid screen make it one of the most versatile portable DAC/amps on the market.

    Specifications

    • Weight: 200gr
    • Usage: Indoor & outdoor

    Pros and cons

    • Sustainably produced
    • Ideal for everyday use
    • May discolor in direct sunlight
    <h1><strong>Portable High-Res Lossless Music Player</strong></h1>

    Portable High-Res Lossless Music Player

    900mW+900mW desktop-level power | ESS 8-channel DAC ES9027SPRO
    6 TI high-precision op-amps | XMOS 16-core XU316
    10-band high-precision PEQ | Fully carbon fiber body
    1.99-inch color display | Included magnetic protective leather case

    *Pictures are for reference only. The actual product may vary

    <h1><strong>High Specs</strong></h1><h1><strong>New Chapter</strong></h1>

    High Specs

    New Chapter

    All-new FIIO QX series

    Writing a new chapter on high-performance audio dongles

    FIIO QX13
    Brings together over a decade of FIIO’s technical expertise
    Combines the Q series of portable amps with magnetic/attachable features
    Creating a high-end, fully integrated ecosystem audio dongle

    • Fully carbon fiber body

      Always pushing boundaries

      Pushing the boundaries of what can be done – the QX13 is made with up to 21 layers of stacked carbon fiber for a lightweight yet durable build. The carbon fiber also allows it to be resistant to interference and heat, while featuring a unique texture and a premium feel.

      *Carbon fiber is widely used in high-end products such as aviation, sports cars, and other items. It is light in weight, high in strength and stiffness, and resistant to corrosion. It has excellent properties and feels luxurious.
      *To improve grip comfort and achieve a better visual effect, the surface of the carbon fiber version was processed with ultra-transparent UV varnish treatment. Please use the QX13 with the leather case to minimize scratches caused by friction with hard objects.
      *There is an alternate aluminum alloy model with a laser-engraved back panel, with its simply elegant yet advanced look.
      FiiO QX13 – Portable DAC/Headphone Amp with ES9027PRO & 900 mW Output
    <h2>Image with banners</h2>
      <h1><strong>Extra large color display</strong></h1><h1><strong>A fresh perspective</strong></h1>

      Extra large color display

      A fresh perspective

      The QX13 features an extra-large color display outfitted
      with Corning third-gen high-strength glass for greater
      durability and scratch resistance, rare among audio
      dongles. Multiple newly developed personalized UI themes
      powered by a 32-bit processor ensure that the user
      experience is unrivaled among audio dongles, making it
      just right for you whether in portrait or landscape mode.









      <h2><strong>Desktop-grade DAC</strong></h2><h2><strong>ESS SABRE PRO</strong></h2><h2><strong>Flagship ES9027SPRO</strong></h2>

      Desktop-grade DAC

      ESS SABRE PRO

      Flagship ES9027SPRO

      The chip features a fully differential audio architecture design with 8
      channels set up in parallel, and is paired with a pair of ultra-low-noise
      ES9312 regulators for precise output matching on each audio channel.
      Audio signals are accurately restored thanks to this pair of chips’
      optimized power efficiency and effectiveness in reducing clock jitter.

      *The ESS SABRE PRO series of DAC chips are mainly used in high-end audio
      systems and professional audio gear. The first generation of products included the
      flagship ES9038PRO, and the second generation of products included the new
      flagship ES9039PRO and EES9027SPRO.











      <h2><strong>6 high-end TI op-amps</strong></h2><h2><strong>Powerful and stable output</strong></h2><h2><strong>with high efficiency</strong></h2><h1></h1>

      6 high-end TI op-amps

      Powerful and stable output

      with high efficiency

      The QX13 uses four wafer-level precision-integrated
      INA1620 chips, with a specially designed internal
      layout to significantly reduce crosstalk – for no
      interference between channels even under extreme
      conditions. Additionally, two low-noise, low-distortion
      OPA1692 chips are employed to ensure excellent
      dynamics under various load conditions.







      <h1><strong>Patented Desktop Mode</strong></h1><h2><strong>Adaptive regulation</strong></h2><h1><strong>Balancing performance</strong></h1><h1><strong>and power consumption</strong></h1>

      Patented Desktop Mode

      Adaptive regulation

      Balancing performance

      and power consumption

      Thanks to its new configuration, optimized audio
      circuit, and more efficient heat dissipation, the QX13
      in desktop mode can deliver power comparable to
      full-size headphone amplifiers while also significantly
      reducing power consumption. It also features a high-
      precision power meter, capable of accurately
      assessing the power supply capabilities of different
      USB sources and intelligently adjusting accordingly
      he headphone amplifier’s gain and output power.
      Patent no：ZL202321946664.8










      <h1><strong>Digital and analog separation </strong></h1><h1><strong>Multi-layer shielding</strong></h1>

      Digital and analog separation

      Multi-layer shielding

      The digital and analog boards are separated and equipped
      with a shielding cover for isolation, ensuring precise and
      dynamic signal processing. This design also effectively
      absorbs and dissipates heat, enabling effective therma
      management and ensuring the QX13 delivers sustained
      high-power output.









      <h1><strong>XMOS 16-core XU316</strong></h1><h1><strong>Uniquely brilliant</strong></h1>

      XMOS 16-core XU316

      Uniquely brilliant

      The QX13 has pro-grade USB Audio quality, with high
      performance, low latency, and support of up to
      768Khz/32bit PCM and DSD512 native decoding. Dual
      ultra-low phase noise, low temperature drift femtosecond
      crystal oscillators ensure that audio of various sampling
      rates is correctly handled for the best sound quality. The
      XMOS XU316 also allows for a 10-band lossless PEQ,
      which can be tuned either via the Android FiiO Control app
      or through the web, making it easy to dial in your sound.

      *Web PEQ location: Top bar of FIIO website – Support – Web-based PEQ settings
      *When PEQ is turned on, the max sampling rate supported PEQ
      adjustment is PCM 192kHz/24bit










      <h1><strong>Specially-designed</strong></h1><h1><strong>audio architecture</strong></h1><h1><strong>Rivaling pro DAC and </strong></h1><h1><strong>headphone amplifiers</strong></h1>

      Specially-designed

      audio architecture

      Rivaling pro DAC and

      headphone amplifiers

      The QX13 condenses audio architecture design
      found in fairly high-end DAC and headphone
      amplifiers into a small dongle. The QX13 with its
      design achieves high-precision conversion of audio
      signals to the DAC thanks to dual crystal
      oscillators. The audio signal goes through multiple








      <h3><strong>Full ecosystem of </strong></h3><h3><strong>accessories</strong></h3><h3><strong>The essence of </strong></h3><h3><strong>portable HiFi</strong></h3>

      Full ecosystem of

      accessories

      The essence of

      portable HiFi

      The included magnetic leather case
      achieves perfect alignment for an
      iPhone. For Android devices, the
      included magnetic ring can be used to
      achieve the same result.

      Dual curved magnets embedded in the
      case back


      It is compatible with the ESTICK mini

      power banks, allowing you to travel

      light while still having powerful audio

      output. Turn on the charging function

      to allow it to be charged by the ESTICK,

      and you have a mini desktop-grade audio

      setup.

      Comes standard with an 8-strand

      decoding cable – 6 strands of

      monocrystalline copper + 2 strands

      of silver-plated monocrystalline

      copper, giving pure high-fidelity

      sound.

      • Want everything

        Got everything

      <h1><strong>Packing List</strong></h1>

      Packing List

      ① ------------------------------------------------------QX13*1

      ② ----------------------------------------------Leather case*1

      ③ ------------------------------Type-C to Type-C data cable*1

      ④ -----------------------Type-C silicone plug*2 (pre-installed)

      ⑤ --------------------------------------Screen protector film*1

      ⑥ -------------------------Ring-shaped magnetic conductor*1

      ⑦ ------------------------------------------Quick Start guide*1

      ⑧----------------------------------------------Warranty card*1

      <h1><strong>Basic specifications </strong></h1>

      Basic specifications 

      Color: Black (carbon fiber)/Titanium (aluminum alloy)

      Weight: About 33.7g (carbon fiber)/About 39.2g (aluminum alloy)

      Dimensions: About 64.2x30.7x13mm

      USB chip: XMOS XU316

      DAC: ES9027SPRO

      Op-amp: OPA1692*2

      Headphone amplifier: TI INA1620*4

      Sampling rate support: Asynchronous 768kHz/32bit, DSD512 (Native),

      MQA full decoding USB DAC driver-free mode: Supported

      Display: 1.99 inch IPS, Corning third-gen high-strength glass

      Headphone output: Single-ended 3.5mm + balanced 4.4mm

      Output power1: L+R≥310mW+310mW (32Ω/THD+N＜1%/SE/desktop mode)

      Output power 2: L+R≥900mW+900mW (32Ω/THD+N＜1%/BAL/desktop mode)

      Output power 3: L+R≥250mW+250mW (32Ω/THD+N＜1%/SE/non-desktop mode)

      Output power 4: L+R≥605mW+605mW (32Ω/THD+N＜1%/BAL/non-desktop mode)

      Output power 5: L+R≥40mW+40mW (300Ω/THD+N＜1%/SE/desktop mode)

      Output power 6: L+R≥125mW+125mW (300Ω/THD+N＜1%/BAL/desktop mode)

      SNR: ≥124dB (A-weighted)

      Noise floor: PO＜2μV (A-weighted); BAL＜3.4μV( A-weighted)

      THD+N: ＜0.0004% (1kHz/-2dB@32Ω)

      General Specifications

      Name/Model
      QX13
      Color
      Black (carbon fiber)/Titanium gold (aluminium alloy)
      Dimensions
      About 64.2x30.7x13mm
      Display
      1.99-inch (170*320) LCD
      Gain
      H/L
      Hardware solution
      DAC: ES9027SPRO*1, USB decoding: XU316, Amplifier: INA1620*4
      Weight
      About 33.7g (carbon fiber)/About 39.2g (aluminium alloy)
      Volume control
      Physical buttons
      Recommended
      PO: 8~350Ω
      headphone impedance
      BAL: 8~350Ω
      Buttons and Ports
      Buttons
      Volume button*2+Play/Pause button*1
      Slide switch 
      Desktop mode switch*1
      Headphone output
      Standard 3.5mm port
      USB
      Type-C USB2.0 (power supply/data transmission)+Type-C USB POWER IN(orange, power supply/OTA upgrade)
      Balanced output port
      Standard 4.4mm port
      Coaxial output port
      Standard 3.5mm port (shared PO)
      Special Function
      Desktop mode
      Supported
      EQ adjustment
      10-band dynamic EQ adjustment (±12dB), built-in 8 preset EQ styles, supports user-defined EQ
      Screen rotation
      Supported
      Max. supported sampling rate
      USB DAC: Supports up to 768kHz/32bit; DSD512 (Native) / Coaxial output: Supports up to 96kHz/24bit
      Status indication
      The display screen indicates the transmission format, volume level, gain level, USB mode, sampling rate, current display, etc.
      MQA
      Support MQA full decoding
      Charging setting
      Supports charging the mini POWER supplyESTICK through the POWER IN port
      Firmware upgrade
      Supports USB-OTA upgrade
      Power Supply Parameters
      Power supply
      DC 5V ≥ 1A
      Audio Parameters---Performance and parameters of headphone output (3.5mm out, USB decoding, desktop mode, high gain)
      Output power
      L+R≥440mW+440mW (16Ω, THD+N＜1%) / L+R≥310mW+310mW (32Ω, THD+N＜1%) / L+R≥40mW+40mW (300Ω, THD+N＜1%)
      SNR
      ≥124dB (A-weighted)
      Frequency response
      20Hz~90kHz: attenuation＜2.8dB / 20Hz~20KHz: attenuation＜0.07dB
      Output impedance
      ＜1Ω
      Crosstalk
      ≥77dB
      Peak output voltage
      9.8Vp-p
      THD+N
      ＜0.0004% (1kHz/-2dB@32Ω)
      Noise floor
      ＜2uV (A-weighted)
      Performance and parameters of headphone output (4.4mm out, USB decoding, desktop mode, high gain)
      Output power
      L+R≥480mW+480mW (16Ω, THD+N＜1%) / L+R≥900mW+900mW (32Ω, THD+N＜1%) / L+R≥125mW+125mW (300Ω, THD+N＜1%)
      SNR
      ≥124dB (A-weighted)
      Frequency response
      20Hz~70kHz: attenuation＜2.8dB / 20Hz~20KHz: attenuation＜0.07dB
      Output impedance
      ＜1.5Ω
      Crosstalk
      ≥113dB
      Peak output voltage
      17.5Vp-p
      THD+N
      ＜0.0006% (1kHz/-8dB@32Ω)
      Noise floor
      ＜3.4uV (A-weighted)

      Performance and parameters of headphone output (3.5mm out, USB decoding, non-desktop mode, high gain)

      Output power
      L+R≥370mW+370mW (16Ω, THD+N＜1%) / L+R≥250mW+250mW (32Ω, THD+N＜1%) / L+R≥30mW+30mW (300Ω, THD+N＜1%)
      SNR
      ≥123dB (A-weighted)
      Frequency
      20Hz~90kHz: attenuation＜2.8dB
      Frequency response
      20Hz~90kHz: attenuation＜2.8dB / 20Hz~20KHz: attenuation＜0.07dB
      Output impedance
      ＜1Ω
      Crosstalk
      ≥75dB
      Peak output voltage
      8.7Vp-p
      THD+N
      ＜0.0004% (1kHz/-2dB@32Ω)
      Noise floor
      ＜2uV (A-weighted)
      Performance and parameters of headphone output (4.4mm out, USB decoding, non-desktop mode, high gain)
      Output power
      L+R≥470mW+470mW (16Ω, THD+N＜1%) / L+R≥605mW+605mW (32Ω, THD+N＜1%) / L+R≥70mW+70mW (300Ω, THD+N＜1%)
      SNR
      ≥122dB (A-weighted)
      Frequency response
      20Hz~90kHz: attenuation＜2.8dB / 20Hz~20KHz: attenuation＜0.07dB
      Output impedance
      ＜1.5Ω
      Crosstalk
      ≥113dB
      Peak output voltage
      13Vp-p
      THD+N
      ＜0.0006% (1kHz/-6dB@32Ω)
      Noise floor
      ＜3.5uV (A-weighted)

      QX13 Technical Support Center

      FAQ

      1. QX13 quick start guide and driver downloads

      The brand-new FIIO QX series is positioned above the KA series, focusing primarily on sound quality, high performance, and multi-scenario integration.

       The QX13 marks the debut of this new series, combining over a decade of FIIO’s DAC/Amp expertise with the Q series amplifier heritage and magnetic/binding features, delivering a high-end, ecosystem-complete HiFi USB dongle.

       QX13 Quick Start Guide:

      https://fiio-instruction.fiio.net/%E5%BF%AB%E9%80%9F%E5%85%A5%E9%97%A8/2025/QX13.pdf

      Driver Download:

      https://bbs.fiio.com/note/showNoteContent.do?id=201911191752415983705&tid=16

       (download the general driver)

      FiiO Control: Click

      Firmware: Currently not available

       Web-based PEQ control for PC:

      https://fiiocontrol.fiio.com/equalizer/custom

       Notes:

      1) Only supports web control on Windows and macOS (Android and iOS are not supported).

      2) Requires browsers that support Web HID API, such as Chrome, Edge, and Opera.

      Send us a message!

      2. What to do if the QX13 encounters issues?

      Reset:

      If abnormal software behavior occurs, reset by pressing the Menu + Volume Down buttons simultaneously.

       Other error prompts may occur for the QX13:

      1) If the display shows “Output Error”, the QX13 will stop output. Please disconnect the USB power and headphones, then reconnect them to try again.

       2) If the display shows “Overheating”, it means the QX13 is overheating abnormally.

      Please disconnect the USB and wait for it to cool down before using it again. In the meantime, it is suggested to enable the Desktop Mode in non-high-temperature environments.

       3) If the display shows “Insufficient Power”, it means the current USB port cannot provide enough power, which limits the output power. Please use an external USB or the ESTICK power band for the power supply.

       4) It may be a poor connection. Please disconnect the USB power and headphones, then reconnect them to try again

      4. Buttons, display screen, and menu settings

      3.5 毫米与 4.4 毫米耳机输出的优先级

      当两者连接时，3.5mm 优先。

      （1）按钮功能说明

      三键模式说明

      桌面模式开关拨动开关开启：当由具有足够功率的主 USB 或侧端口适配器供电时，激活高压电源和并行驱动器，提供桌面级输出功率
      （2）显示屏说明
      1） 当前音量：显示当前音量。

      2） 格式/采样率显示区域：显示当前播放的格式和采样率。

      3） 当前 UAC 模式：根据 UAC 模式显示“UAC2.0”或“UAC1.0”。

      4） 同轴输出：如果启用了同轴输出，则显示在屏幕上。

      5） 电流增益模式：显示高/低增益状态。

      6）电压显示：显示电流电压值。

      7） 当前显示：显示当前当前值。

      8） 桌面模式：显示桌面模式状态。

      9） EQ 模式：显示 EQ 状态

      3） 菜单设置说明

      如何进入菜单

      非菜单页面：短按一次播放键开启/关闭屏幕;双击短按播放按钮静音/取消静音;长按播放按钮约 2 秒钟以调出设置菜单。

      菜单页面：短按音量+/-键选择菜单选项;短按播放键切换设置;长按播放按钮约 2 秒钟退出设置菜单。

      1） 增益：高/低增益设置。高阻抗耳机建议与高增益一起使用，而低阻抗耳机建议与低增益一起使用。

      2） 过滤器：数字过滤器设置，有 7 个过滤器可用。

      3） 音量级别：总音量级别设置，60 级和 120 级可供选择。

      4）同轴输出：启用同轴输出后，使用单独的3.5mm转RCA电缆输出SPDIF信号。通过模拟耳机听音乐时请禁用此输出。

      5）通道平衡：左/右通道平衡设置，±12级可调。

      6）亮度：显示屏亮度设置，1-5级可调。

      7） PEQ模式：均衡器设置，8种风格可供选择，包括爵士、流行、摇滚、舞曲、R/B、经典、嘻哈和复古。此外，它还支持 10 个用户自定义均衡器，需要在飞傲控制应用程序或计算机上执行。

      旁路：从旁路切换到其他 EQ 效果不会中断播放;音乐继续不停歇。

      OFF：均衡器关闭。从 OFF 状态切换到另一种 EQ 模式时，播放将暂停，您需要再次按播放。

      8）体积限制：最大体积限制，0-120可用。

      9）屏幕旋转：显示屏旋转设置，包括180度旋转。

      10） 主题：四个主题可供选择。

      11） 屏幕超时：屏幕从开到关的时间设置。

      12） UAC 模式：在 USB 2.0 和 1.0 模式之间进行选择。

      13） HID按钮：按钮模式选择，在模式A、B和C之间进行选择。有关更多详细信息，请参阅用户手册。

      14） USB-OTA：启用进入固件升级状态。有关更多详情，请参阅常见问题中的问题 9。

      15） 充电设置：

      启用后，可以通过将 USB 充电线连接到 QX13 的底部端口来为外部 ESTICK 电池充电。

      16） 语言/中文：语言切换，在中文和英文之间进行选择。

      17）恢复出厂设置：恢复默认设置，但不会降级。

      18） 版本号：显示固件版本号。

      5. How to use FiiO Control with QX13

      To configure the QX13 using the FiiO Control app, please follow these steps:

      (1) Install the FiiO Control app on your phone and update it to the latest version:

      https://bbs.fiio.com/note/showNoteContent.do?id=202004151639417637974

      (2) Connect the QX13 to your phone via an OTG adapter cable, then open the FiiO Control app. In the “My Products” section, find the QX13 and tap to connect. Once connected successfully, you will enter the QX13 control page.

       Note: iPhones do not support app control. The settings will be saved in memory. If app-based configuration is required, please use an Android device.

      6. How to connect QX13 to a mobile phone

      [Android phones/Tablet PCs]

      The QX13 can be connected to Android phones or tablet PCs via a Type-C to Type-C cable. Once connected, you can enjoy high-quality music playback.

       [Notes]

      1) Due to system and hardware differences in Android mobile phones or music players, some devices may encounter compatibility issues.

      2) Certain mobile phones may require manually enabling the OTG function in order to work properly. Please consult your phone manufacturer’s customer support for detailed instructions.

      3) Some phones may display a prompt such as “Unauthorized Type-C digital headphones.” This can be ignored, and normal usage is unaffected.

       [iPhone/iPad]

      The QX13 can be connected to iOS phones or iPads via a Type-C to Lightning cable or Type-C to Type-C cable. Once connected, you can enjoy high-quality music playback.

       [Notes]

      1) Only Apple devices running iOS 10.0.2 or above are supported. Versions below this are not compatible due to system limitations.

      2) Because iPhones have restrictions on external power output and the QX13 has relatively high power consumption, playback at maximum volume may sometimes stutter or produce no sound.

       Regarding issues with Exclusive USB Audio Access Mode

      Due to system and hardware differences in Android mobile phones or music players, some conflicts and compatibility issues may occur under the Exclusive USB Audio Access Mode. Known issues are listed below:

      1) For some phones without physical volume buttons (e.g., HUAWEI Mate30 Pro), volume can be adjusted by swiping up the playback screen to reveal the volume slider when in the Exclusive USB Audio Access Mode in the FiiO Music app.

      2) Certain phones have power management policies that restrict third-party apps from running in the background. In Exclusive USB Audio Access Mode, this may cause the music app to pause playback for a few seconds after going into the background. To avoid this, manually set the app to “Allow background activity” in battery management settings.

      3) When running other apps (such as WeChat, Tieba, etc.) in Exclusive USB Audio Access Mode, audio may stutter or cut out. This issue is still being optimized. For best results, it is recommended to focus on music playback when using Exclusive USB Audio Access Mode. Otherwise, please use other modes for music playback.

      7. How to use QX13 with a computer

      [Windows PC]

      1) Supports plug-and-play on Windows 10 or later systems.

      2) Install the FiiO USB driver to enable ASIO output and further support DSD512. Please download the universal DAC driver from our official website:

      https://www.fiio.com/Driver_Download

      3) In your playback software, set the audio output device to FiiO QX13, connect your headphones, and you’re ready to use.

      DSD playback settings:

      https://bbs.fiio.com/note/showNoteContent.do?id=202107201227198792402

      [Mac computer]

      No driver installation is required. For computers with a Type-C port, connect directly using a Type-C to Type-C cable. For computers with a USB-A port, use a USB-A to Type-C cable. Select FiiO QX13 as the audio output device on the computer.

       [Linux computer]

      Linux systems are generally driver-free and should work by plugging in directly. However, due to the wide variety of versions, full compatibility cannot be guaranteed. If the device is not recognized, it is suggested to try another data cable or USB port. If still not detected, the system may not be supported.

      8. Desktop Mode and independent power input

      What is Desktop Mode? Desktop Mode is designed to extend the product’s lifespan (by reducing battery usage) and to increase output power and drive capability. Many of FIIO’s later products also feature this mode.

      On the QX13, when Desktop Mode is enabled, the hardware activates four op-amps in parallel for higher current output, significantly boosting power output (driving ability). The independent power input port allows the QX13 to run directly from an external power supply, reducing the phone’s battery drain and helping to extend its lifespan.

      Is it necessary to always enable Desktop Mode during normal use? No. Whether to enable Desktop Mode depends on personal listening preferences, the heat generated by the QX13, and your tolerance for phone battery consumption. It is meant to be a customizable option.

      How to enable Desktop Mode on QX13?

      Use the “D.MODE” toggle on the QX13 to switch on/off the Desktop Mode.

      When switched to ON, Desktop Mode is enabled, increasing the device’s power, gain, and driving force—ideal for high-impedance or harder-to-drive headphones.

      When switched to OFF, Desktop Mode is disabled, suitable for daily listening and low-impedance, easy-to-drive headphones.

      Independent power input of QX13

      The QX13 is designed with two Type-C ports. The bottom USB port is for connections with mobile phones, tablet PCs, or computers. The side orange USB port is dedicated for external independent power input. When connected to a power adapter, the independent power port allows the QX13 to unleash greater performance and driving power while preventing battery drain on the connected phone.

      Independent power input takes priority. Once connected, the QX13 will draw power from the independent port instead of the phone. The independent power supply must provide at least 5V/1A.

      Can Desktop Mode be enabled without external power? Generally yes. When paired with Android phones, iPhone 15 series, or computers, Desktop Mode can be enabled even without an external power supply. However, with other Apple devices, external power is required to use Desktop Mode.

      Can QX13 reach 900mW output in Desktop Mode without external power? Yes, as long as the USB port provides sufficient power, it can still reach 900mW (we have confirmed this with some Android phones). If the USB port cannot provide enough power, Desktop Mode will automatically disable (the “D” icon on the screen will disappear).

      Can external power be used when Desktop Mode is disabled? Yes. When both the main and the side USB power ports are connected, the QX13 will prioritize power from the side port.




      9. How to upgrade the firmware of QX13?

      The QX13 contains two types of firmware: XMOS firmware and MCU firmware.

      Steps for MCU firmware upgrade:

      1) Connect the computer’s USB to the side USB port of the QX13.

      2) Enter the QX13’s menu, find the “USB-OTA” option, and switch it ON.

      3) The computer will recognize a mobile hard disk drive with a capacity of about 2 MB.

      4) Copy the QX13 firmware file into this drive.

      5) Reconnect the USB to power cycle the device. The QX13 will then enter upgrade mode. Once the upgrade is complete, a success prompt will be displayed.

       Steps for XMOS firmware upgrade:

      For the XMOS firmware upgrade, please connect to a computer through USB.

      1) Before upgrading, please confirm that the USB driver is installed on the computer. If not, download and install it from https://www.fiio.com/Driver_Download

      2) Download the required firmware from the official website: https://bbs.fiio.com/firmwareDown.do

      3) Download the firmware and unzip it on your computer.

      4) Connect the computer’s USB to the main USB port of the QX13, and disable EQ.

      5) Open the XMOS upgrade tool from the unzipped files.

      6) Once the device is detected, click “Start” to begin the upgrade. Wait until the progress bar completes to finish the upgrade.

       

      Note:

      If the upgrade fails or disconnects midway, please reopen the upgrade tool and try again.

      10. What is the hardware architecture, decoding capability, and output power of QX13?

      The brand-new FIIO QX series is positioned above the KA series, prioritizing sound quality while focusing on high performance and multi-scenario usage.

      The QX13, as the debut model of this series, integrates over ten years of FIIO’s DAC/AMP expertise. It combines the advantages of the Q series amplifiers with stackable/magnetic features to deliver a high-end, ecosystem-complete HiFi dongle.

      The QX13 adopts a single ES9027SPRO DAC chip with XMOS 316, features a bilingual display (Chinese/English), and supports menu operation through physical buttons as well as controlling via the FIIO Control app. It also supports coaxial output and a 10-band PEQ.

      Decoding capability: Supports up to 768kHz/32bit PCM, DSD512 native decoding, and Full MQA decoding

      Power consumption:

      Lower than KA17

      Non-Desktop Mode: PO: 160mA, BAL: 164mA

      Desktop Mode: PO: 192mA, BAL: 211mA

      11. How to use coaxial output on QX13?

      To use the SPDIF (coaxial output) function, you need to enter the menu and set the SPDIF switch to ON. Then, use a dedicated 3.5mm-to-RCA coaxial cable to connect the QX13 to the input of another device for signal transmission. The pin definition diagram is shown below:

       When using the 3.5mm audio output port for single-ended output, it is suggested to turn off the SPDIF switch to avoid conflicts.

      Note: The coaxial output volume is fixed and cannot be adjusted on the QX13. Volume control must be handled through the connected DAC or power amplifier.

      悬空：NC (Not Connected)

      3.5mm4节：3.5mm 4 poles

      RCA头：RCA plug

      12. Does QX13 support in-line control?

      No. Since the QX13’s 3.5mm port also supports coaxial output, in-line control functions are not supported.

      13. Can QX13 be used with Switch and PS5?

      Yes. The QX13 supports UAC 1.0, making it compatible with both PS5 and Nintendo Switch game consoles.

      14. Explanation of QX13 digital filters
      15. PEQ settings about QX13

      What is PEQ?

      PEQ (Parametric Equalizer) is an equalizer that allows detailed adjustment of multiple parameters, including frequency bands (e.g., low, mid-low, mid-high, high), frequency points (sweepable, freely selectable), gain (boost/cut), and Q factor (bandwidth, adjustable or selectable high/low Q). It is generally used for subjective sound adjustments, making the music style more distinct and colorful, and achieving the desired listening effect.

      What is the difference between PEQ and a regular EQ?

      With PEQ, you can freely customize the center frequency, amplitude, and Q factor. In contrast, a regular EQ allows you to adjust amplitude only, while the frequencies and Q values are fixed by the system. Simply put, PEQ is fully customizable, while a standard EQ is system-defined. Because regular EQ presets are fixed and limited in variety, many users find that none of them fully meet their expectations. With the introduction of customizable PEQ, this issue is resolved, providing users with far greater flexibility.

       How to use PEQ on the QX13

      On Mobile phone (Android only)

      Connect the QX13 to your phone via a USB cable. Open the FIIO Control app, tap “+” in the top-right corner of My Products to find and connect the QX13. Tap the Equalizer option to configure PEQ.

       On PC (Web browser)

      Connect the QX13 to your computer via a USB cable. Open the provided web interface :https://fiiocontrol.fiio.com/equalizer/custom

      in the top-left corner, click Search Device, select QX13, and then configure PEQ.

       The PEQ configuration on the QX13 can be set and saved either through the FIIO Control app (Android) or the web interface. For usage instructions: 

      https://ievhjafqj3.feishu.cn/docx/OS30d9lssonSuYxcjcncnOixn3c

      Note: PEQ takes effect in both UAC 2.0 / UAC 1.0 modes and coaxial output mode.



      16. How to charge the mini power bank ESTICK with QX13?
      17. Does the carbon fiber version of QX13 have heat accumulation issues that affect sound?

      1) Compared to the KA17, the QX13 reduces power consumption by 23%. This means that at the same output power, it generates less heat, reducing thermal buildup at the source.

      2) The internal design adopts thermal conductive silicone and a nickel silver heat spreader, which efficiently conducts heat away from the core sources (such as DAC/AMP chips). Heat is quickly and evenly dispersed over a larger area, effectively preventing localized heat accumulation and improving overall thermal dissipation efficiency.

      3) While the thermal conductivity of carbon fiber is indeed lower than that of metal, it still has some heat conduction capability. Combined with the internal thermal management system, the large-area carbon fiber housing, and additional heat dissipation through headphone jacks and connectors, the QX13 can continuously and stably release internal heat into the air.

      4) Strict thermal testing verification: In a high-temperature environment of 30°C, the QX13 was tested under continuous 24-hour playback at 20% volume in Desktop Mode (high power consumption state). The results showed that the maximum localized surface temperature of the housing reached only 43.5°C. After the test, all hardware indicators remained normal, fully proving its thermal reliability and stability under extreme conditions.

      5) The QX13 is also equipped with a temperature protection mechanism. When the temperature exceeds the limit, it will automatically exit Desktop Mode and reduce volume. If the temperature continues to rise, further protection will be triggered by shutting down audio output, preventing abnormal operation due to overheating.

      Conclusion: The device does not suffer from heat accumulation issues that would cause malfunction or affect sound quality.

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