Technical Specifications

Core Performance & Hardware

• Processor: Qualcomm Snapdragon 680

• Operating System: Android 13 (Customized with 5 operating modes: Android, Pure Music, USB DAC, Bluetooth Receiver, and AirPlay)

• System Memory (RAM): 8GB LPDDR5

• Internal Storage: 128GB (approx. 112GB usable)

• Expandable Storage: microSD card slot (Supports up to 2TB)

Audio Architecture

• Digital-to-Analog Converter (DAC): FiiO Proprietary Fully Differential 24-bit R2R Resistor Ladder (utilizing 192 precision thin-film resistors)

• Decoding Modes: NOS (Non-Oversampling) and OS (Oversampling)

• USB Controller: XMOS XU316

• Amplification Stage: Fully balanced architecture with 2x TI Burr-Brown OPA1637 op-amps + 4x INA1620 amp chips in parallel

• Clock System: FiiO DAPS (Digital Audio Purification System) with high-capacity FPGA and dual custom femtosecond crystal oscillators

• Volume Controller: NJW1195A precision electronic volume control

• Equalizer: 10-band parametric EQ + AutoEQ headphone matching

Audio Resolution & Decoding Support

• Local Playback: Up to 384kHz/32-bit PCM, Native DSD256

• USB DAC Mode: Up to 768kHz/32-bit PCM, Native DSD512

• Coaxial Output: Up to 384kHz/24-bit PCM, DSD128 (DoP/D2P)

• Format Support: APE, FLAC, WAV, WMA, AAC, ALAC, AIFF, OGG, MP3, DFF, DSF, DXD

Audio Output Power

• 4.4mm Balanced:

  • Super High Gain (Desktop Mode):  1100mW + 1100mW @ 32 ohms

  • High Gain: 900mW + 900mW @ 32 ohms

  • High Impedance Drive: 240mW + 240mW @ 300 ohms

• 3.5mm Single-Ended:

  • Super High Gain (Desktop Mode):  470mW + 470mW @ 32 ohms

  • High Gain:  300mW + 300mW @ 32 ohms

Audio Performance Measurements

• Signal-to-Noise Ratio (SNR):  117dB (Single-Ended, A-weighted) /  116dB (Balanced, A-weighted)

• Total Harmonic Distortion + Noise (THD+N): 0.0183% (PCM) / 0.0033% (DSD)

• Frequency Response: 20Hz–40kHz (attenuation < 3dB)

• Crosstalk:  74dB (1kHz @ 32 ohms)

• Output Impedance: < 0.8 ohms (Single-Ended) / < 1.5 ohms (Balanced)

Connectivity & Wireless

• Physical Outputs: 3.5mm Single-Ended (Headphone/Line Out/Coaxial), 4.4mm Balanced (Headphone/Line Out)

• USB Ports: Dual USB Type-C configuration (1x USB 3.0 data/charging port + 1x dedicated “POWER IN” port for Desktop Mode battery bypass)

• Wi-Fi: Dual-band (2.4GHz / 5GHz) with DLNA and AirPlay support

• Bluetooth Version: Bluetooth 5.0

• Bluetooth Transmission (TX): SBC, aptX, aptX HD, LDAC, LHDC

• Bluetooth Reception (RX): SBC, LDAC

Display & Control

• Screen Size: 5.5-inch fully laminated IPS touchscreen

• Resolution: 1080 × 2160 pixels

• Glass Protection: Corning Gorilla Glass 3 with oleophobic coating

Power & Battery

• Battery Capacity: 4400mAh Li-Polymer

• Playback Time: Up to 15.5 hours (3.5mm Single-Ended) / Up to 13.5 hours (4.4mm Balanced)

• Charging: 25W low-temperature fast charging (Approx. 1.5 hours to full charge)

Physical Build

• Dimensions: 138.2 × 71.5 × 17 mm

• Weight: Approx. 258 g

• Materials: CNC-machined aluminum alloy chassis, Gorilla Glass 3 front, tempered glass back

• Available Colors: Black, Dark Blue, Retro Gold