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FIIO JM21
Hi-Res player with 1000mW power per channel.
Processor and DAC: Snapdragon 660, DAC AK4191EQ + AK4499EX
Display: 5.5’ bezel-less (1440x720)
RAM/ROM: 4GB/64GB, expandable up to 2TB
Connectivity: WiFi 2.4/5GHz, Bluetooth 5.0 (SBC/AAC/LDAC/LDAC/aptX HD)
Audio outputs: 3.5mm (PO, line), 4.4mm balanced, coaxial
Output power (Super High Gain):
480mW (16Ω), 440mW (32Ω)
Battery life: 10.5h (3.5mm), 9h (4.4mm)
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FiiO JM21: Hi-Res Sound for Everyone
The FiiO JM21 is the latest high-resolution audio player from FiiO, designed as an entry-level device. It delivers 700mW of output power and features a high-quality DAC developed by Cirrus Logic.
Powerful performance with Snapdragon 680
This device is powered by an eight-core Snapdragon 680 processor with Kryo 265 architecture and a 6nm manufacturing process. It ensures smooth operation on Android 13 via its 4.7-inch touchscreen, striking the perfect balance between power and energy efficiency for an impeccable user experience.
Long battery life and versatile connections
The FiiO JM21 boasts an impressive 12.5 hours of continuous use. It includes 4.4mm balanced and 3.5mm standard audio outputs, making it compatible with a wide range of headphones.
Optimized audio circuit
The JM21 provides up to 700mW of balanced output power per channel in a compact design only 13mm thick, making it ideal for handling various headphone types and impedances.
High-quality DAC technology
Equipped with dual Cirrus Logic CS43198 DACs and SGM8262 operational amplifiers, the JM21 delivers balanced, high-fidelity sound. This is complemented by a segmented, optimized power supply and enhanced gain stages that ensure superior dynamic range.
Android 13 tailored to your needs
This player runs a customized Android 13 system, offering an intuitive and fluid interface while allowing you to install your favorite music streaming apps.
Comfortable and modern design
The FiiO JM21 features an elegant ultrathin design in sky blue, lightweight and easy to hold with one hand. Its HD 4.7-inch screen ensures effortless navigation and control.
Gain adjustment and Bluetooth compatibility
With three gain levels (low, medium, and high), the JM21 adapts to various headphones, from in-ear monitors to over-ear models. It also supports bidirectional Bluetooth 5.0, enabling high-quality audio transmission and reception with codecs such as SBC, AAC, aptX HD, LHDC, and LDAC.
Advanced features
The FiiO JM21 can function as an external digital-to-analog converter (DAC) when connected to a computer, supporting sampling rates up to 384kHz/32 bits. Whether playing local music or using apps like FiiO Music and Apple Music, it guarantees lossless sound quality.
Connectivity for every need
With both analog and digital outputs, the JM21 offers options such as 3.5mm standard, 4.4mm balanced, SPDIF, and USB audio output. This allows seamless integration with devices like active speakers, computers, and more.
What’s in the box
- FiiO JM21
- PET film screen protector (pre-installed)
- Transparent case
- USB cable
- Quick start guide
- Warranty card
Technical specifications
Model: JM21
Processor: Qualcomm Snapdragon 680
DAC: Dual CS43198
Amplifier: Dual SGM8262
Modes:
- Android Mode
- Pure Music Mode
- USB DAC Mode
- Bluetooth Reception Mode
Weight: Approximately 156g
Dimensions: 120.7 x 68 x 13 mm
Screen: Bezel-less 4.7-inch (750 x 1334 resolution)
Storage: 32GB ROM (22GB available)
RAM: 3GB
Adaptive impedance: 8 ~ 150Ω
Memory expansion: Up to 2TB microSD card
Outputs:
- 3.5mm standard headphone
- 4.4mm balanced headphone
- Shared coaxial via 3.5mm
- Shared line-out via 3.5mm and 4.4mm
Wireless connectivity:
- Wi-Fi: 2.4GHz/5GHz (supports DLNA, AirPlay, Wi-Fi song transfer)
- Bluetooth transmission: AAC, SBC, aptX, aptX HD, LDAC, LHDC
- Bluetooth reception: SBC, AAC, LDAC
FiiO Link: Supported
Updates: Via local storage, microSD card, or OTA
Operation: Gestures, two buttons, and three additional buttons
USB DAC: Up to 384kHz/32-bit; DSD256 (native)
Local decoding: Up to 384kHz/32-bit; DSD256 (native)
USB audio: Up to 768kHz/32-bit; DSD512 (DoP/D2P/native)
Coaxial output: Up to 384kHz/24-bit; DSD128 (D2P/DoP)
Power supply: 5V/≥2A supported
Charging time: Approximately 2 hours with 5V/2A charger
Battery life:
- 3.5mm headphone output: Up to 12.5 hours
- 4.4mm balanced output: Up to 9.5 hours
Output power (high gain):
- 16Ω: ≥360mW + 360mW (THD <1%)
- 32Ω: ≥245mW + 245mW (THD <1%)
- 300Ω: ≥30mW + 30mW (THD <1%)
Output impedance: <1Ω
Peak output voltage: 7.9Vp-p
Crosstalk: ≥70dB
Signal-to-noise ratio: ≥124dB (A-weighted)
Total harmonic distortion + noise: <0.0012% (1kHz/-4dB at 32Ω)
Frequency response:
- 20Hz ~ 80kHz: Attenuation <0.7dB
- 20Hz ~ 20kHz: Attenuation <0.02dB
Noise level: <1.6uV (A-weighted)
With its advanced features, versatile connectivity, and sleek design, the FiiO JM21 redefines entry-level high-resolution music players, making Hi-Res sound accessible to everyone.
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