9
up to 96kHz (TOSLINK is not recommended at 192kHz sampling rates).
Note: To obtain the best results from your system we recommend using only high-quality Cambridge Audio interconnects. This will ensure that you hear
your system as we designed it. Please ask your dealer for details.
7. Digital Outputs
TOSLINK Optical and S/P DIF coaxial digital outputs.
8. USB Audio In
A USB B type socket to enable the playback of audio from a computer running either Microsoft Windows or Apple Mac OS X operating systems. Some
builds of Linux may also be supported but due to the open-source nature of the Linux operating system cannot be guaranteed.
Notes:
Always use a high-quality USB connection cable certified as USB Hi-Speed. USB cable connections longer than 3m may result in inconsistent audio
performance.
Always turn the volume to minimum, switch to another input or turn the 851N off before plugging/unplugging cables to the USB input or whilst
booting up/shutting down your PC/Mac.
The use of USB hubs is not recommended for this input.
9. RS232C Interface
The RS232C interface enables external serial control of the 851N in custom installation applications, as well as for use by Cambridge Audio service
personnel for software updates.
10. IR In
Allows modulated IR commands from an IR repeater or custom install systems to be received by the amplifier.
Commands received by the IR In socket are not looped out of the Control Bus.
Note: The IR input doesn’t provide any power, so any device connected to this input will need to have its own power source.
11. Control Bus
RCA sockets used to send and receive power and volume commands from other connected 851 Series products. For more information on the Control Bus,
see Control Bus section.
12. AES/EBU Balanced
In – For sources with a balanced (AES/EBU) digital output. This input is suitable for 16-24 bit content up to 192kHz.
Out – For external devices incorporating a fixed (AES/EBU) digital input.
13. Line Output
Line Output (fixed or variable) used to provide a signal to an amplifier or a recording device.
14. Balanced Audio Output
For use with balanced XLR connections. The balanced connection is the higher quality option and can reject noise and interference in the cable when used
with other equipment that supports this function.
Note: XLR connectors should be wired as follows: Pin 1: Ground, Pin 2: Hot (in-phase) and Pin 3: Cold (phase-inverted).