| Name/Model | K17 |
| Hardware solution | SoC: X2000; MCU: ESP32-S3; DAC: AK4191EX+AK4499EQ*2; USB decoding: XU316; Bluetooth decoding: QCC5125; AMP: MJE243G/253G discrete transistor current amplification headphone amplifier |
| Working mode | USB DAC mode/Coaxial decoding mode/Optical decoding mode/Line in mode/Balanced in mode/Bluetooth receiving mode/Streaming media receiving mode/Local playback mode |
| Colors | Black/Silver |
| Weight | About 2750g |
| Dimensions | About 244.6x213x66.8mm |
| Volume control | Knob/Touch-on-display/Remote control |
| MQA | Supports MQA full decoding |
| Driver-free mode (Switch mode) | Supported |
| Gain | Ultra high gain mode/Super high gain mode/High gain/Medium gain/Low gain |
| Bluetooth receiving (5.1) | SBC/AAC/aptX/aptX LL/aptX HD/atpX Adaptive/LDAC |
| Display | 3.93-inch LCD (240*1020) bezel-less screen |
| Touch-on-display | Supported |
| PEQ | Supports global 31-band PEQ (No PEQ processing in digital output) |
| FIIO Control | Supports settings through the app |
| WiFi | Supports 2.4G/5G dual-band WiFi |
| Firmware upgrade | SOC firmware: Upgrade through the rear USB-A port MCU firmware: Upgrade through the rear RS232 port XMOS firmware: Upgrade through the front or rear USB-C port |
| Remote control | Supports IR remote control (only the one included in the accessory) |
| Knob indicator light | Supports customizing color, brightness, supports always-on indication or RGB pulsing |
| Coaxial input decoding: Up to192kHz/24bit; DSD64 | Track format, sampling rate |
| Optical input decoding: Up to96kHz/24bit | EQ, volume |
| Coaxial output: Up to192kHz/24bit; DSD64 | Network status, Bluetooth codec |
| Optical output: Up to192kHz/24bit | Gain, time |
| Local playback: Up to384kHz/32bit; DSD256 | BAL: 8~350Ω |
| Knob | Power on/off knob*1+Analog output level knob*1+Gain level knob*1+Volume knob with button*1+Menu knob with button*1 |
| USB port | Type-C USB*3 (Data transmission port*2+RS232 DSP regulating port*1) USB-A*1 (Data transmission port) |
| Balanced headphone out | Standard 4.4mm port*1+XLR4 balanced plug*1 |
| Headphone out | Standard 3.5mm port |
| Digital optical input port | Optical plug |
| Digital coaxial input port | RCA plug |
