X20 HiFi

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X20-DAC INTRODUCTION

Operating System: VOLUMIO, MOODE

For Use With: Raspberry Pi 1 Model B+/ 2 Model B / 3 Model B

X20-DAC BOARD

Features

  • ESS Technology flagship DAC chipset (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

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

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

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)

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

Software Configuration

Volumio (Version: 2.368)

Select the“PLAYBACK OPTIONS”menu, Turn off "I2S DAC" and select "xCORE-AUDIO Hi-Res 2" under“Output Device.” Then reboot and you are done. X10-i2s-Volumio.png

Moode Audio Player (Version: 3.1)

Simply select the“Configure”menu, select "MPD" under "configuration settings", then select "USB audio device" under "Audio device", Then click “APPLY" and reboot. X10-i2s-Moode.png

Document

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