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Reference Monitors User Handbook
REFERENCE MONITORS RM-2S4 & RM-2S10
REFERENCE MONIT
ORS RM-2S4 & RM-2S10
1
The PHASE INVERT modifier will affect the loudspeaker audio, line-level audio outputs,
phase meter reading and also, by default, the main meter readings (refer to the Main
Meters section of this manual).
Being able to invert the polarity of one channel of the monitoring is very useful.
For example, sometimes being able to put the speakers deliberately out of phase is
useful to identify the presence of a phase error elsewhere in the signal chain. When trying
to match the levels of two channels, such as when aligning a stereo pair, being able to
invert one channel and then sum to mono (to produce a cancellation null) makes very
fast and easy work of an otherwise fiddly process.
SIDE (M+S) Audio Modifier
When on, the M+S button is illuminated and the left and right channels of the currently
selected stereo audio Source are converted to/from a Side (also known as
Sum+Difference) signal prior to further processing and reproduction. An input signal
in standard Left+Right (L+R) format will be encoded into M+S format before metering
and reproduction, while an input signal in M+S format will be decoded to L+R. The two
processes are identical.
The M+S modifier will affect the loudspeaker audio, line-level audio outputs, phase meter
reading and also, by default, the main meter readings (refer to the Main Meters section of
this manual).
Rear Panel Connections & Operation
Fig 1-16: Reference Monitor RM-2S4 Rear
Fig 1-17: Reference Monitor RM-2S10 Rear
Mains Power
Power is applied via a standard three-pin IEC male socket. Mains voltages between 85V and
264V AC and frequencies between 47 and 63Hz are accepted without adjustment. A 2A, 5 x
20mm SB fuse is used. The Earth pin MUST be connected to ensure safety.
Wordclock Termination (block 2 DIP switch 10)
This terminates the internal wordclock on RM-2S4 and 4C8 units and prevents false clocks
or ringing which can cause invalid ouput signal or noise. This switch should be set to off if a
RM-HD1 or HDE1 expansion card is fitted.
Digital Input Termination
Switchable termination is provided to allow the RM-2S4 & RM-2S10 inputs to be bridged
across an existing AES/EBU connection without double-termination, but this should only
be attempted with the terminating equipment mounted adjacent to the RM-2S4 or
RM-2S10 and with connections kept as short as possible.