HOLO Audio RED network player digital player ,USB supports up to PCM1536K and DSD1024 Raspberry Pi

After placing the order, you need to wait. We will arrange shipment as soon as possible according to the order sequence.Â

Please contact us for the specific delivery date before placing the order.

Red positioning is aimed at users with experience and ability in using Raspberry Pi. If you are an inexperienced user,Â

please choose carefully. We do not provide any service support on software systems. This is also the reason why we can offer a high-quality hardware product at the current price.

Instructions for use (in Chinese): http://pan.baidu.com/s/1jvwJZ7Feq1psMPRLjO3b1A?pwd=8888Â Â

Instructions for use (in English): http://pan.baidu.com/s/1JRLgMH1-NfMdjjvpmb6ZGQ?pwd=8888Â Â

System: http://pan.baidu.com/s/1TcBsa6cn3xvDBdDvvIz0Ug?pwd=8888

USB driver: http://pan.baidu.com/s/11fRrjm6LheutJvc9npy6jw?pwd=8888

In recent years, Raspberry Pi has become popular worldwide, providing an open hardware platform and attracting support from numerous software developers.Â

To this day, there are already many excellent software products to choose from on the Raspberry Pi platform. We have always wanted to create a digital player and network player.Â

Based on the Raspberry Pi solution, we can focus our efforts and resources on hardware design, effectively control software development costs, and provide a cost-effective andÂ

high-quality product to end users.

Chi did not use ready-made Raspberry Pi boards, but only used the computing core module of Raspberry Pi 4th generation, with customized high-quality peripheral circuits andÂ

linear power provided by Chi's motherboard. This allows Red to be compatible with Raspberry Pi software without being limited by Raspberry Pi hardware. Take the essence and discard theÂ

dross. Become a high-quality digital player.

The red output ports include USB, coaxial 1, coaxial 2, fiber optic, AES, and I2S. Among them, USB supports the highest PCM1536K and DSD1024,Â

I2S supports the highest PCM768K and DSD512, and all other ports have the highest PCM192K and DSD64. If the decoder supports it,

 it is recommended to prioritize USB and I2S output. The output of I2S can be set for line sequence through the dip switch at the bottom of the chassis to be compatible with the vast majority

 of I2S line sequence standards on the market.

Chi also comes with a USB IN port, which can be connected to a computer and used as a USB interface. In this connection state, coaxial 1, coaxial 2, fiber optic, AES,Â

and I2S are all disconnected from the internal Raspberry Pi and controlled by an external computer. This feature makes the functions of Red more diverse and flexible,

 but from a sound quality perspective, it is still recommended to connect its internal Raspberry Pi through Ethernet, and let the Raspberry Pi control the output of each digital port.

The system provided by Chi includes the following functions and can be upgraded online to support more features in the future

Roon Ready

HQPlayer NAA

UPNP

AirPlay2

Squeezelite

Scream

Spotify Connect

Tidal Connect

USB Redirector

Of course, any Raspberry Pi system can also run directly on the red, such as Moode, Volumio, piCorePlayer, and so on, just make sure to open the USB 2.0 port in the configuration file,Â

specifically by adding a line 'dtoverlay=dwc2' in '/boot/config. txt', dr_mode=host