Silvery 115V RPI Pro Streaming Media Digital Music Turntable Roon Bridge HiFi Audio Streamer Built-in CM4 for Raspberry Pi

Highlights:
- CM4 Raspberry Pi computing module, with strong computing power and minimal interference.
- Low phase noise OCXO, high-precision low phase noise constant temperature crystal oscillator, -100dBc/1Hz Typ.
- Ultra low jitter PLL, for Skyworks high-performance PLLSI5381 phase-locked loop chip.
- High performance DC power supply, built-in multi-channel independent high-speed low ripple stabilized power supply.
- Native USB + Isolation: Native USB output, low loss and low noise with USB isolation.
- SFP network port, easily set up fiber optic isolation, purify network signals.
- Clock input, supports external 10MHz master clock input (automatic switching).
- For Noratel transformer, low noise, abundant energy, and good dynamic performance.
- The aluminum alloy shell is hollowed out as a whole, and the circuits with different functions are separated to reduce interference and mechanical resonance.

Description:
- By default, install the system for Ropieee as a Roon bridge. For Ropieee not only has good sound quality, but also is easy to use. Even without a Roon core, it can directly cast screen music to your phone for decoding, which is much better than Bluetooth. At the same time, it is also possible to install data playback software for Volumio and Moode that support for Raspberry Pi system, making RPI pro a popular audio network player.

- The RPI Pro bridge adopts for Raspberry Pi 4th generation computing core module CM4, which outputs directly through native USB to avoid signal loss and interference caused by Raspberry Pi 4B's PCIe conversion.

- RPI Pro can not only build SFP optical isolation but also have USB isolation. RPI Pro provides dual ports of RJ45 and SFP, making it convenient for users to cooperate with fiber optic modules and cables, easily achieving network optoelectronic isolation, significantly reducing network interference noise, and improving network signal transmission quality.

- The USB2.0 port is a native output of the CM4 core CPU, without any other conversion processing, significantly reducing signal loss and interference. At the same time, a 3165 high-speed isolation chip and power module have been added to the output end of the USB port, further improving the quality of this USB Audio port. Therefore, by directly transferring digital audio to the DAC decoder through this USB Audio port, stable and accurate playback of high-resolution PCM and DSD files can be ensured, showcasing studio level delicate details and dynamic performance. Whether connected to high-end decoders, streaming media players, or HiFi systems, it can provide a high fidelity auditory experience with "zero compression" and "zero compromise".

- Through its independent design, it supports fiber optic Ethernet and USB isolation, completely isolating digital noise, and optimizing stable digital output through a high-precision OCXO (Oven-controlled Crystal Oscillator) clock system.

- SFP and RJ45 cannot be connected to the same local area network at the same time, only one can be chosen.

- Equipped with a high-precision and low phase noise SC-cut OCXO oven-controlled crystal oscillator (PN: -100dBc/1Hz Typ.) as the reference clock reference for the entire machine. Using for Skyworks' high-performance PLL phase-locked loop chip, multiple high-precision synchronous clock signals are generated to provide clock signals to the main computing unit (CM4), network control chip, and USB port processing chip, enabling multiple modules inside the machine to achieve clock synchronization.

- Equipped with a 10MHz BNC external master clock input, it can connect to higher-level reference clocks, automatically switch, and meet the ultimate upgrade requirements.

- The whole machine adopts a 30VA ring transformer for Noratel as the power core, and is equipped with an EMI filtering circuit.

- A high-speed multi-channel matrix filter is composed of high-speed rectifying devices and multiple HiFi high-capacity electrolytic capacitors. The LT3042+PNP and two independent high-performance DC conversion power supply circuits provide independent uV level power to the clock system, switch, and USB, respectively.

The built-in Ropieee supports the following functions:
- For HQPlayer NAA
- For Roon Bridge
- For UPNP
- For Spotify Connect
- For Tidal Connect
- For Airplay - (suitable for iOS screen casting)
- For Squeezeelite - (suitable for Daphile)

Specification:
Hardware:
- Compute module 4 (CM4) 4G
- High speed MicroSD TF 64G
- OCXO + PLL clock + SFP + 3165 high speed isolation chip
- Three channel DC-DC TPS62913 for TI (high performance DC power supply)
- For Noratel ring transformer

System:
- For Ropieee by default (you can contact our customer service to modify after payment if you need the system for MOODE)

Clock Input Interface:
- BNC x 1 (10MHz at 50ohms sine wave / square wave 7 - 14dBm/0.5 - 1Vrms)

USB2.0 Interface (with isolation):
- 44.1kHz - 768kHz/32Bit
- DSD64/128/256/512 (Native DSD)

I2S:
- PCM44.1kHz - 384kHz/32Bit
- DSD 64

Network Interface:
- RJ45: adaptive 10M/100M/1000M
- SFP: support electric and optic module, adaptive 10M/100M/1000M

Grounding Dial Switch:
- Control the AC ground wire, dialing the code upwards to disconnect the ground wire, and dialing downwards to connect the ground wire.

Grounding Interface:
- This device can be grounded separately.

Built-in OCXO:
- Near end noise: -100dBc at 1Hz Offset (typical value)
- Frequency stability: ±0.3ppb
- Frequency accuracy: ±1ppm

General Parameters:
- Product size: 240 x 175 x 50mm
- Net weight: 3kg
- Voltage: 115V/230V (optional)
- Power consumption: 8W for standby; 12W for full-loaded
- Fuse: 5 x 20mm T1.0AL (110-120VAC); 5 x 20mm T1.0AL (220-240VAC)

Package Included:
- 1 x RPI Pro Bridge
- 1 x Power Cable
- 1 x CAT6 Cable