Cyrus Pre2 DAC - MC-Bus System; How It Works

Cyrus Pre
2
DAC User Instrucons
9
MC-BUS System
Connecng the MC-BUS sockets a in an MC-BUS system
provides unied system control.
External Power Supply - PSX-R/PSX-R
2
The PSX-R is a unique DC power supply that will upgrade
the sonic performance of compable products in the Cyrus
range. The PSX-R
2
is a performance upgraded version of
the PSX-R. Both of these power supplies are compable for
connecon to the Cyrus Pre
2
DAC.
The following text refers to the use of the PSX-R, but applies
also to the PSX-R
2
.
To connect a PSX-R, disconnect both components from the
mains, then plug the connector on the umbilical cord of the
PSX-R into the Mul-Pole socket on the back panel. You will
need a mains supply for both units.
NOTE: Connecon of a PSX-R is detected automacally, so
no internal adjustments are required.
How it works
When a PSX-R is connected to a Cyrus product, the power
feeds to the internal circuitry are split two ways with the
clean, stable power source of the PSX-R feeding sensive
circuit secons while other requirements are supplied
internally. This ensures complete isolaon of control circuits
and sensive analogue secons reducing AC mains-borne
noise and power supply ripple.
An MC-BUS loop is
established by connecng
single phono cables from the
MC-BUS output of one unit to
the MC-BUS input of another
in a daisy-chain. Complete
the loop by returning the
MC-BUS output of the nal
component to the MC-BUS
input of the rst.
With MC-BUS connecon established you can control the
power funcon of the enre system from the front panel
or remote control. Selecng ‘CD’ from the front panel will
switch on the amplier, the Cyrus power amplier and a
Cyrus CD player. When the amplier is set to Standby, the
enre system will also switch o.
When a Cyrus Surround Processor is included in the MC-BUS
loop, seng of the volume calibraon level will take place
automacally when the ‘Cyrus AV’ input is selected. Refer
to the handbook for the Surround Processor for further
details.
Cyrus
Tuner
Cyrus Power
Amplifier
Cyrus CD player
Cyrus amplifier
MC-BUS out
MC-BUS out
MC-BUS out
MC-BUS out
MC-BUS in
MC-BUS in
MC-BUS in
MC-BUS in