The Best Fiio X5 Refurbished of 2025 – Reviewed and Top Rated
After hours researching and comparing all models on the market, we find out the Best Fiio X5 Refurbished of 2025. Check our ranking below.
2,004 Reviews Scanned
- [High-performance DAC&USB decoding chip]: The K5Pro ESS headphone amps achieves new heights in sound quality and comes with a high level of resolution sound. ES9038PRO with 32-bit processing, along with the XUF208 USB decoding chip with 768kHz and DSD256 inputs, and it also upportes mobile phone connectivity.
- [Variety of inputs]: Supports coaxial/optical/RCA line-in inputs, with optical and coaxial inputs supporting up to 192kHz inputs, K5Pro ESS amplifier is convenient for connecting various music players and digital interfaces.
- [Variety of outputs]: Supports 6.35mm (1/4 in.) headphone out/RCA line-out outputs, the RCA line-out line signal is adjustable up to a maximum of 2Vrms, so the K5Pro ESS portable DAC can be used with a variety of active speakers and external amplifiers.
- [Easily handles low or high impedance headphone]: For a total power output of up to 1.5 W under a 32Ω load, and up to 20Vpp at 300Ω, K5Pro ESS desktop amplifier can easily handles any low or high impedance headphone.
- [Various headphones with all kinds of sensitivities]: With ADC volume adjustment, K5Pro ESS portable headphone amplifier allows you to smoothly adjust volume at extremely fine increments without any undesirable noise nor with any channel imbalances. It means you could comfortably use various headphones with all kinds of sensitivities with it.
- A Brand-New Processor That Surpasses Competing Products — Qualcomm Snapdragon 680 Built on a 6nm process, it delivers superior performance and enhanced power efficiency. With 4GB+64GB storage and Android 13, it ensures smooth and seamless operation for all major music apps.
- Patented Desktop Mode with 950mW High Power Output: When Desktop Mode is activated, the M21 operates entirely on external power, with the built-in battery neither charging nor discharging—effectively extending battery lifespan.
- Quad CS43198 Matrix DACs, Fully Balanced 2-Stage Amplification: Featuring a 4-channel, 8-path fully differential output design, it unleashes its full potential with exceptional dynamic range and high noise immunity. The headphone amp adopts a 2-stage circuit design—the first stage handles voltage amplification while the second stage boosts current—ensuring pristine sound quality and rich detail.
- Versatile Ports, High-Performance Output: Supports dual 3.5mm + 4.4mm headphone/LO outputs, equipped with independent line amplification circuits. Also supports SPDIF and USB Audio output, with SPDIF performance rivaling professional digital transports—reducing jitter by 70%.
- A Brand-New Processor That Surpasses Competing Products — Qualcomm Snapdragon 680 Built on a 6nm process, it delivers superior performance and enhanced power efficiency. With 4GB+64GB storage and Android 13, it ensures smooth and seamless operation for all major music apps.
- Patented Desktop Mode with 950mW High Power Output: When Desktop Mode is activated, the M21 operates entirely on external power, with the built-in battery neither charging nor discharging—effectively extending battery lifespan.
- Quad CS43198 Matrix DACs, Fully Balanced 2-Stage Amplification: Featuring a 4-channel, 8-path fully differential output design, it unleashes its full potential with exceptional dynamic range and high noise immunity. The headphone amp adopts a 2-stage circuit design—the first stage handles voltage amplification while the second stage boosts current—ensuring pristine sound quality and rich detail.
- Versatile Ports, High-Performance Output: Supports dual 3.5mm + 4.4mm headphone/LO outputs, equipped with independent line amplification circuits. Also supports SPDIF and USB Audio output, with SPDIF performance rivaling professional digital transports—reducing jitter by 70%.
- The most competitive and cost-effective desktop balanced DAC/Amp within the 300-USD range;
- Adopts the six-stage audio circuit as in FiiO’s high-end devices, and features 2 AMK’s latest AK4493SEQ DACs and dual THX AAA 788+ amps;
- Supports multiple outputs- 4.4mm balanced out, 6.35/3.5mm single-ended out, as well as multiple inputs- USB, optical, coaxial and AUX in;
- Comes with versatile functions as well as robust output power- 1% THD+N under BAL output, 2000mW stable output power, which can drive most headphones, including full-size headphones;
- Supports input selections, 2 gain levels and 3 output levels, and features RGB indicator lights that can display the working state and differentiate sampling rates.
- BTR11 supports the LDAC Bluetooth audio format, providing HiFi-level wireless Bluetooth sound quality, and also supports Bluetooth 5.3!
- In continuous music playback, the working time reaches 15 hours. When the battery is low, it only takes 1 hour to charge up to 90%, close to full capacity!
- Weighing only 12.5g and measuring about 5.5cm, it offers two convenient carrying options: an elastic back clip and a lanyard, making it stress-free to carry!
- With a built-in high-performance independent ear amplifier and an output power of up to 45mW (16Ω), it allows earphones to deliver excellent performance, providing high-quality music comparable to wired connections via Bluetooth.
- It features a built-in high-sensitivity omnidirectional microphone that supports call noise reduction, ensuring a clear calling experience.
- With dimensions of just 83.2mm x 39.4mm x 13mm, the device is comparable in size to mainstream lighters. The body knob is crafted from aluminum alloy, featuring a meticulously designed wheel that simulates PVR tuning, seamlessly blending retro and modern aesthetics. This offers an immediate feedback experience that digital tuning devices simply cannot match.
- Equipped with the Silicon Labs professional FM radio chip Si4831, the device boasts enhanced radio station search capabilities, delivering clearer and more stable reception. It supports the 64-108MHz FM band, allowing you to tune into standard FM signals as well as campus FM broadcasts. Enjoy mainstream music stations, news programs, and unique campus radio content with ease.
- The RR11 not only supports using headphones as an antenna but also features a high-performance PCB signal gain antenna. This significantly enhances radio reception, ensuring you can effortlessly capture clear signals with a lightweight and portable design.
- The RR11 comes standard with custom retro-style earbuds and a digital-to-analog conversion cable. When paired with the conversion cable, the RR11 transforms into a compact headphone amplifier, boosting output power and utilizing the DDB analog sound effect chip to deliver unique audio enhancements. Whether you're listening to music or streaming online radio, the experience is enriched with distinctive charm.
- The RR11 is powered by a custom DDB analog sound effect and amplification chip, recreating classic audio effects and offering a 3D sound experience. This immerses you in a lifelike auditory environment, making every listening session truly captivating.
- Premium Solid Wood Design – Natural Elegance & Comfort Crafted from hand-selected walnut/maple wood, the housing undergoes CNC carving, polishing, and oil-finishing for a luxurious feel. The ergonomic curved design fits naturally in your hand, with tactile buttons for intuitive control.
- Custom 10-Band PEQ Tuning – Shape Your Sound Equipped with a high-performance DSP, tweak your audio via the Fiio Control App/web interface. Save/share 3 custom PEQ presets or use built-in profiles—unlock endless sound personalization.
- Dual DAC Audio Engine – Hi-Res Certified Performance Features dual CS43131 DACs supporting PCM 384kHz/32-bit & DSD256 decoding (Hi-Res Audio certified). Budget-friendly, but delivers rich, detailed sound rivaling premium gear.
- Smart User-Centric Features Low-heat design with power management IC; 3.5mm combo jack (supports mics/headset controls)*Fast/slow volume ramping + customizable button modes Auto-sleep & RGB sample-rate indicator*Note: iOS/some Android devices may restrict headset controls.
- Universal Compatibility – Works with Everything 3.5mm single-ended + 4.4mm balanced outputs (3.5mm doubles as SPDIF coaxial); Detachable cables for Android/iOS/PC/Mac; UAC 1.0/2.0 toggle for PS5/Switch support
- [Support hi-res Bluetooth format]: BTR7 bluetooth amplifier supports Bluetooth 5.1, LDAC/aptX Adaptive/aptX LL/aptX HD/aptX/AAC/SBC hi-res wireless format.
- [3.5mm+4.4mm dual output]: Widely compatible with the BTR7 headphone amps, this means a 4.4mm balanced headphone output in addition to the traditional 3.5mm single-ended headphone output - for a more detailed audio experience in a jack format now widely used.
- [Lossless sound and support MQA]: The BTR7 bluetooth amps relies on the XMOS XUF208 chip to receive and decode audio data streams, with support up to PCM 384kHz and native DSD256. In USB DAC mode and with an MQA player, up to MQA 8x rendering is supported.
- [cVc 8.0 and built-in microphone]: BTR7 bluetooth amplifier supports cVc 8.0, supports Bluetooth voice call, supports earphones with CTIA in-line controls.
- [High performance DAC]: Each of the left and right channels of the BTR7 bluetooth DAC is the ES9219C, which is paired with a low-pass filter and an amplifier in a highly-optimized audio architecture that captures every last detail and dynamics in your music. And with support for MQA, your music will definitely come across clearly and boldly.
- Equipped with Qualcomm's new-generation flagship Bluetooth chip, the QCC5181, the UTWS5 2025 supports Bluetooth 5.4, complies with the LE Audio standard, and offers a bandwidth transmission capability of up to 2.1Mbps. It also supports the Lossless specification in the aptX Adaptive system, as well as audio codecs like LDAC and aptX Adaptive at 96kHz/24bit.
- When enabling desktop mode and using the BTR17 to connect to a smartphone as a tail DAC/amp, you can connect the dedicated power input to an adapter. In this case, the battery will be fully powered by USB, preventing overcharging and overdischarging. The device also delivers a powerful 650mW output capability while not consuming the smartphone's battery.
- With lower latency, more stable transmission, and better compatibility than regular USB chips, the device supports 768kHz/32bit, hardware decoding for DSD512, and full MQA decoding. It also features PEQ developed on this platform, allowing adjustments via both the app and web interface, with support for high-definition PEQ at a sampling rate of up to 192kHz.
- The BTR17 is equipped with two ESS flagship dual-channel DACs, the ES9069Q, based on the fourth-generation 32-bit HyperStream architecture. This allows for enhanced performance and lower power consumption. Additionally, it further reduces digital noise within the DAC, achieving a dynamic range of 130dB and total harmonic distortion of -120dB. The result is a richer musical experience with a purer sound background.
- The BTR17 features a convenient and user-friendly three-mode switch (PC/BT/PHONE), allowing for seamless one-click switching between computer soundcard, Bluetooth DAC/amp, and smartphone tail DAC/amp modes. It automatically optimizes the power supply status based on the connected front-end device, offering versatile usage and greater peace of mind.
Last update on 2026-01-01 / Affiliate links / Images from Amazon Product Advertising API
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- Brand Value: Every brand of Fiio X5 Refurbished has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
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- Product Quality: You don’t always get what you pay for with an Fiio X5 Refurbished, sometimes less, and sometimes more.
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FAQ:
Q: Why should I buy the FiiO X5?
A: Your enjoyment is not just limited to your ears as all your senses are rewarded by the X5. So when you want to have the best music playback experience, start with the FiiO X5. Video Player is loading.
Q: What are the specs of the fatfiio X5 3rd generation?
A: FiiO X5 3rd Generation High Resolution Lossless Music Player – USB Cable – Coaxial Digital Adapter Cable – Tempered Glass Screen Protector – Clean Case – Leatherette Case – Android Version 5.1.1 – Original Box Viewable Angle: 178 deg. Amazon Business: Make the most of your Amazon Business account with exclusive tools and savings. Login now
Q: How do I connect the FiiO K5 to my computer?
A: It can be connected to a computer as a USB DAC. It can also act as a transport, outputting digital audio signals to an external USB DAC. And finally, it can also be docked to the FiiO K5 docking station, through which it can be charged and connected in even more different ways.
Q: What audio formats can the X5 play?
A: When we set out to build the X5 into the most advanced digital music player, we started with a powerful dual core CPU so that it can play the most demanding audio formats such as DSD, APE, FLAC, ALAC, WMA, and WAV, all without a hint of strain, even at 192kHz/24-bit.