Description
resources on hardware engineering, effectively controlling software development costs, and delivering a high-quality, affordable product that passes the savings on to the end user.
RED does not use an off-the-shelf Raspberry Pi board. Instead, it adopts the Raspberry Pi 4 Compute Module, paired with a custom-designed, high-quality peripheral circuit and linear power supply on RED's mainboard. This design ensures full software compatibility with the Raspberry Pi while breaking free from its hardware limitations-retaining the strengths and eliminating the weaknesses-to become a high-fidelity digital audio player.
RED features the following output ports: USB, Coaxial 1, Coaxial 2, Optical, AES, and I'S.
* USB supports up to PCM 1536kHz and DSD1024
* 1'S supports up to PCM 768kHz and DSD512
* All other ports support up to PCM 192kHz and DSD64
If your DAC supports these formats, USB and I'S outputs are recommended. The I'S pinout can be configured via DIP switches on the bottom of the chassis to be compatible with most I'S standards on the market.
RED also includes a USB IN port. When connected to a computer, RED can function as a standalone USB audio interface. In this mode, the Coaxial 1, Coaxial 2, Optical, AES, and I'S outputs are disconnected from the internal Raspberry Pi and controlled by the external computer, adding versatility and flexibility. For optimal sound quality, however, we recommend connecting to the internal Raspberry Pi via Ethernet, allowing it