Global 31-band professional-grade, high-precision, lossless PEQ.
DAC: AKM flagship DAC chips AK4191 + AK4499EX x 2.
Amp: Fully discrete AB-class transistor amplification circuit.
Output: 4000mW + 4000mW.
Three ultra-low phase noise femtosecond oscillators
Fully balanced audio architecture
35W low-noise, low-frequency linear power supply.
Display: 3.93-inch LCD touchscreen.
Network: Dual-band 2.4G/5G Wi-Fi + 1000M Ethernet port.
Remote: Yes.

General Specifications
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
Max. supported sampling rate:
USB decoding: Up to 768kHz/32bit; DSD512 (Native)
Screen status indication：Working mode, output mode
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
Streaming decoding: Up to384kHz/32bit; DSD256 (DOP)
Local playback: Up to384kHz/32bit; DSD256
Adaptive impedance：
PO: 8~150Ω
BAL: 8~350Ω

Buttons and Ports
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
Digital optical output port: Optical plug
Digital coaxial output port: RCA plug
Balanced line output port:XLR3 balanced plug
Single-ended line output port: RCA plug
Balanced line input port: Standard 4.4mm port
Single-ended line input port: RCA plug
Slide switch: Ground selector switch
Housing grounding terminal: M4 banana plug (Can be directly connected to use)
Ethernet port: 1000Mbps
TRIGGER IN port: Standard 3.5mm port

Power Supply Parameters
Power supply: AC 100-120V/220-240V~50/60Hz
Battery capacity: N/A

Box LIST:
K17 Host *1
AC power cord *1
Remote control*1
XLR4 decorative plug *1
Fuse*1
USB data cable *2
Headphone adapter *1
After-sales service card *1
Quick Start *1