Features:
1. Brand new octa-core 6nm Snapdragon 680
2. Android 13
3. 4 CS43198 matrix DACs
4. Fully balanced 2-stage amplification
5. Dual Type-C interfaces
6. Desktop/Portable dual power supply
7. 950mW superior output power
8. 4.7-inch HD screen
9. 3.5mm + 4.4mm headphone/LO dual outputs
10. Low jitter coaxial output
11. Retro cassette tape style protective case
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1. Flagship main processor, a new benchmark for entry-level products
The brand new processor that surpasses other products in its class—the Qualcomm Snapdragon 680—offers superior performance and power efficiency, running smoothly with Android 13.
6nm process technology
2.4GHz main frequency
4GB RAM + 64GB storage combination
2. 4 × CS43198 Fully Equipped for Powerful Performance
4 groups of 8-channel fully differential output design, fully unleashing potential, possessing superior dynamic range and high anti-interference capabilities; the headphone amplifier section adopts a two-stage circuit design, with the pre-amplifier responsible for voltage amplification and the power amp for current amplification, ensuring pure sound quality and rich detail.
Four-channel fully balanced headphone amplifier architecture
3. Patented Desktop Mode: Battery Protection Expert
FiiO's first entry-level player features a desktop mode. When desktop mode is activated, the M21 is entirely powered externally, with the built-in battery neither charging nor discharging, allowing it to be used as a desktop amplifier, effectively extending battery life.
Patent No.: ZL202321946664.8
4. Portable/Desktop Dual-Mode Power Supply: Performance Leap Forward
Standard voltage power supply in portable mode, automatically switches to high-voltage power supply in external power supply headphone mode, comparable to desktop headphone drive capability, further adapting to more earphones or headphones, bringing an extraordinary auditory feast.
21Vpp (300Ω)
Peak Drive Voltage
950mW (32Ω)
Powerful Output
41%
Improvement compared to M11S
5. Walkman Retro Experience: One Touch A specially developed custom cassette tape style protective case, linked to a unique retro UI, and specially tuned retro sound effects, bringing you back to the Walkman era... Remove the protective case to seamlessly switch to the original system for a smarter and more convenient experience.
*The cassette tape style protective case is optional or sold separately.
*When the cassette tape style protective case is installed, touch screen operation is not supported; only button operation is supported.
6. Meticulous Craftsmanship, Perfect Inside and Out
The all-aluminum alloy body and AG frosted glass back cover offer a delicate touch and comfortable grip; the screen features an oleophobic coating, effectively reducing fingerprints and smudges, and ensuring smoother touch operation.
7. Separate Digital and Analog Units for a Purer Sound Experience
The digital and headphone amplifier modules are arranged in separate sections and equipped with independent shields for isolation. This not only further reduces signal crosstalk but also achieves efficient heat dissipation, delivering a purer sound quality experience.
8. Flagship-Level Power Supply Layout
Separate power supplies for digital and analog circuits effectively reduce crosstalk between them, resulting in more accurate digital signals, purer analog signals, and more powerful driving force. Furthermore, the analog circuitry is further subdivided into multiple independent power supplies for the DAC and headphone amplifier, providing a clean and powerful power supply that enhances the dynamic range and detail of the audio signal, resulting in a more delicate and natural sound.
9. High-end HiFi components, solely for superior sound
The M21's audio circuitry utilizes high-precision thin-film resistors and low-temperature drift capacitors, resulting in delicate and stable sound quality with greater consistency in performance across the left and right channels and frequency ranges. Furthermore, the DAC, headphone amplifier, and other sophisticated circuits are equipped with over ten low-resistance, high-capacity tantalum capacitors, ensuring robust power supply and ample energy storage for a more powerful sound.
10. Global Audio Optimization
Fifth-generation FPGA + Custom Dual Femtosecond Crystal Oscillators
FiiO has custom-developed miniaturized active crystal oscillators specifically for the M21, selecting them according to femtosecond precision to ensure consistent stability. A high-precision, low-jitter unified clock source accurately matches various sampling rates of PCM and DSD audio, ensuring precise reproduction of digital audio signals during transmission.
10-band PEQ adjustment across the entire range
No SRC across the entire range
All-to-DSD across the entire range
11. Versatile Interfaces, Showcasing Unique Power
Analog Output
3.5mm, 4.4mm headphone output interface: Connects to headphones
3.5mm + 4.4mm line output interface: Equipped with independent line amplification circuitry, connects to active speakers or amplifiers.
Digital Output
SPDIF Output: Low-jitter coaxial signal processing circuitry comparable to digital turntables, reducing jitter by 70%, providing high-level performance even when connected to external high-end decoders.
Coaxial Output Circuit Architecture
USB Audio Output: Connects to an external audio decoder, instantly transforming it into a streaming media turntable.
12. 15-Hour Ultra-Long Battery Life, Roaming the World of Music
Equipped with a 4000mAh high-voltage battery, providing up to 15 hours of ultra-long battery life, easily meeting the needs of commuting, traveling, or long listening sessions, allowing you to fully immerse yourself in the world of music. Also supports 20W PD fast charging, allowing for quick recharging even during short breaks.
15h single-ended battery life
11.5h single-ended battery life
1.5h full charge
20W PD fast charging
*Data from FiiO Labs, please refer to actual usage. Actual results may vary slightly due to different testing environments and conditions.
13. Comprehensive Hardware and Software Integration
MQA 8x Fully Expanded
Two-way LDAC Bluetooth
APP Remote Control
Customizable Multi-function Keys
RGB Breathing Light
