R5 4G Version Streaming Media HiFi Digital Turntable High Precision OCXO Built-in Motherboard for Raspberry Pi 5 (No SSD)

R5 4G Version Streaming Media HiFi Digital Turntable High Precision OCXO Built-in Motherboard for Raspberry Pi 5 (No SSD)

Highlights:
- Global femtosecond clock synchronization
- Built-in OCXO
- External 10MHz clock
- Built-in M.2 NVMe interface
- For Raspberry Pi 5
- Multi-channel uV low noise stabilization

Description:
- R5 is equipped with a HiFi oven-controlled crystal oscillator (OCXO) to provide accurate clock signals for the entire machine. Through the intervention of a 10M clock signal, the clarity and transparency of the sound are greatly improved, and the sound field is wide and precise in positioning.

- Femtosecond level clock: R5 is composed of a SI5340 professional level clock synthesizer, with output jitter as low as femtosecond level 90fs, providing high-quality global synchronous clock signals for the whole machine. The clock performance is far superior to other ps level ordinary clock chips.

- External 10MHz clock: R5 provides one clock input, making it easy to connect your high-quality synchronous clock to improve machine performance. When the machine starts up and detects the connection of an external clock, it automatically switches to the external clock mode. The built-in OCXO will automatically power off to reduce interference. Note: To ensure the normal operation of the machine, please connect an external clock or disconnect the external clock signal while the power is off.

- For Raspberry Pi 5 uses a low precision passive crystal oscillator as the clock signal source, resulting in lower clock signal quality; When applied to R5, the passive crystal oscillator on the original board is removed and replaced with a high-quality and accurate clock signal output by an oven-controlled crystal oscillator. The clock system generates three synchronized low jitter clocks and inputs them to Raspberry Pi 5. The constant temperature crystal oscillator has high precision and stability. Upgrading the clock of Raspberry Pi 5 effectively improves the quality of the bus clock. After upgrading, the sound at both ends is extended and strengthened, transparent and clean, and the details are clear.

- Solid state drive synchronous clock: The R5 music digital turntable is equipped with an M.2NVMe solid state drive interface, but the SSD is not included. Equipped with uV level low-noise linear regulated power supply and synchronous clock, making local playback even better.

- The solid-state drive bus usually uses a low precision passive crystal oscillator as the clock signal source for bus operation. The clock signal quality is low, the accuracy is poor, and it cannot synchronize with the motherboard clock; When R5 is equipped with a solid-state drive, the passive crystal oscillator on the original board is removed, and a clock synchronized with the motherboard system is connected to achieve global synchronization of the clock. The sound at both ends is further enhanced, and the details are clear and natural.

The R5 digital turntable is equipped with Raspberry Pi 5, a new generation kernel, and commonly used playback systems for PiCorePlayer, Volumio, Moode Ropieee, and other software have been tested and proven to be usable. When the R5 digital turntable is shipped, different software systems will be installed according to different versions. If you have different requirements, please contact us before payment. We will install the official version for Ropieee system by default before shipment, the system has good sound, many functions, simple to use, and basically does not need to operate after installation and setting, connect to the network to get following functions:
- HQPlayer NAA -
- Roon Bridge -
- UPNP -
- Airplay - (for iOS system
- Squeezelite - (for Daphile)
- If you need to install other systems, such as PiCorePlayer, Volumio, Moode and other commonly used systems, please contact us before payment.
- Special reminder: Although R5 has perfect design, superior performance and complete functions, it is only suitable for users with experience and ability to use for Raspberry Pi, and the after-sales of goods is limited to the hardware part, and inexperienced users please choose carefully.

Specification:
Input:
- RJ45 interface/adaptive 10M/100M/1000M
  Note: The machine has a metal shell and does not support the WIFI and Bluetooth on Raspberry Pi
- External 10MHz reference clock signal input (BNC connector/50ohms impedance)
  Support most of 0.5-3.3Vpp level sinewave or square wave

Output:
- Interfaces: USB2.0 x 2, USB3.0 x 2
- Supported specification:
  PCM: 44.1kHz - 768kHz/32Bit
  DSD: DSD64/128/256/512 (Native DSD)
- Special Reminder:
1. The output of the above specifications needs to be supported by a decoder.
2. When the USB output is connected to the decoder for Native DSD decoding, the USB input of the decoder needs to support for Linux DSD Native.
3. The USB output interface cannot be connected to USB devices with a current greater than 300MA; only suitable for connecting decoder USB input or other small stream USB devices.

Power Supply Specifications:
- Input: AC220V (110V is optional, contact us before payment if you need it)
- The power plug of the power adapter is AU three-plug, other standard plugs are not available, if necessary, please replace the suitable power cord.
- Power consumption: <18W

Chassis Specification:
- Size: W x H x D = 2300mm x 55mm x 160mm
- Net weight: about 2.5kg
- Packaging size: W x H x D = 300mm x 150mm x 300mm
- Packaging weight: about 3.2kg

Package Included:
- 1 x Host
- 1 x Power Adapter
- 1 x 32G TF Card

Note:
- The machine is powered by pure wire electricity and generates a large amount of heat during operation. Please place the machine in a wide and ventilated environment for use.
- Due to the need for product performance design and the limitations of material purchase conditions, this product has been produced using non brand new components.
- The warranty service is limited to the product host and does not include accessories or software we installed.
- We are not responsible for faults caused by incorrect use, accidental damage caused by negligence, or modification or replacement of circuits or components.
- Machines with damaged warranty labels are not covered by the warranty.