X20

Product Overview

For Use With	Raspberry Pi 1 Model B+/ 2 Model B / 3 Model B
Operating System	VOLUMIO, MOODE
X20-DAC BOARD	Key Features
	ESS Technology flagship DAC cipset (ES9028Q2M) for best sound quality
	129dB DNR -120dB THD+N
	32bit/384kHz Bit to Bit Playback & Native DSD Playback (Use with our XMOS I2S module)
	JRC MUSES8920 high quality Audio J-FET input dual OP AMP
	Ultralow phase noise 100MHz HiFi TCXO
	Texas Instruments ultra-low-noise voltage regulator
	Dedicated individual DVCC, AVCCL, AVCCR, Oscillator 3.3V power supply
	Selected high quality components (WIMA Film capacitor, Panasonic low ESR aluminum electrolytic capacitor, Gold-plated RCA connectors etc)
	Can connect to our XMOS USB-to-I2S module directly
	Can be used individually with only 3 wire I2S signal connected from other i2s interface
	All dual OPAMP in single dip8 package IC can be used
	High performance and compact Raspberry Pi DAC solution for everyone
	Specification
	Power supply: +5Vdc ±5%, +15Vdc ±5%, -15Vdc ±5%
	Analog audio output level: 2V RMS
	Resolution/Sampling Rate: Up to 24bit / 192KHz (Raspberry Pi I2S);Up to 32bit / 384KHz (Use with XMOS USB to I2S board);DSD64 /DSD128 (Use with XMOS USB to I2S board)
	PCBA size : 101.5 x 56mm x 34.5mm, PCB size : 85 x 56mm
X10-PWR POWER SUPPLY BOARD	Key Features
	Fully regulated linear power supply board for X10 / X20 series DAC
	Texas Instruments ultralow noise TPS7A470x regulator
	Four individual 5.2V/ 5.0V/-15V/+15V to power the Raspberry Pi (1), DAC chipset and OPA
	High performance ELNA and Nichicon Audio Purpose Capacitors
	For use with R-core transformer
	Specification
	Input rating : 6VAC ±5% 2.5A, 6VAC ±5% 0.5A, 15VAC ±5% 0.55A, 15VAC ±5% 0.55A
	Output voltage：5Vdc ±5% 2.5A, 5Vdc ±5% 0.5A, +15Vdc ±5% 0.5A, -15Vdc ±5% 0.5A
	PCBA size : 85mm x 56mm x 50.5mm, PCB size : 85 x 56mm
	Notes
	Low voltage indicator might show up during boot, it does not affect audio performance.
	WARNING:
	DO NOT APPLY POWER TO YOUR RASPBERRY PI VIA THE PI's MICRO USB SOCKET.
X10-RTR R-CORE TRANSFERMER	Key Features
	For use with X10-PWR power supply board
	High quality 35W R-core transformer
	Equipped with AC voltage selector switch convenient to select 115/230Vac input
	Lighted power switch
	Equipped with detachable power cord
	Full aluminum chassis
	Specification
	Input : AC110 / 230V ~50 / 60Hz
	Output： 6VAC ±5% 2.5A, 6VAC ±5% 0.5A, 15VAC ±5% 0.55A, 15VAC ±5% 0.55A
	Size 118m x 93mm x 59mm
X10-I2S BOARD XMOS USB TO I2S / SPDIF / Coaxial	Key Features
	The XMOS xCORE-AUDIO Hi-Res family of parts
	Deliver precise output with low noise/distortion for soothing, high-quality sound
	Ideal HiFi audio solution for Raspberry Pi
	Streamed through Raspberry Pi to I2S, DSD and/or S/PDIF interfaces
	PCM up to 32bit /384 KHz sample rates
	Native DSD, DoP64 and DoP128
	Up to 192 kHz, 16/24 bit resolution S/PDIF output
	Asynchronous Isochronous transfer from Raspberry Pi
	Multiple OS support (Volumio, Moode Audio Player, Windows, Android etc)
	SiTime SiT8208 ultra performance oscillator
	Texas Instruments ultra-low-noise voltage regulator
	Specification
	Power supply: +5Vdc +/-5%
	CODEC: I2S 16, 24, or 32 bit PCM, DSD64 and DSD128
	PCM sample rates : 44.1, 48, 88.2, 96, 176.4, 192, 352.8, 384KHz
	Optional S/PDIF output : Up to 192 KHz; 16/24 bit resolution
	PCBA size : 101.5 x 56mm x 34.5mm, PCB size : 85 x 56mm
'X10-HPAMP HiFi Headphone Amplifier (Optional Accessories)	Key Features
	Uses TI TPA6120A2 as headphone chip
	SNR of 128dB A-Weighted and THD of 112.5dB
	Current-Feedback Architecture
	The best class AB high fidelity headphone amplifier for diyer to enjoy
	Original ALPS RK27 potentiometer
	0.1% low noise thin film resister
	6.35mm and 3.5mm earphone output jack
	Specification
	Power supply: +15Vdc ±5%, -15Vdc ±5%
	Output power: 150MW /250, 300MW /120, 1000MW /32
	Frequency response: 20hz-30khz
	PCBA size : 124mm x 56mm x 37.5mm, PCB size : 85 x 56mm

Document

• User Manual: X20_HiFi
• Chinese User Manual: File:X20-Kit-Guide-CN.pdf

FAQ

Q: Can I use the X10-I2S and X10-PWR without X20-DAC board?

A: Yes，but only supports coaxial and optical fiber output. Not recommended for use with other DAC boards, compatibility cannot be guaranteed.