Connection And Setup; Dip Switches - Adastra RM244V User Manual

Connection and setup

Connect the rear IEC inlet (37) to the mains supply using the IEC power lead provided (or an
equivalent approved type). Ensure that the voltage is correct as indicated on the voltage selector
(25) and that the mains outlet is switched on.
The RM244V has 3 mic/line inputs which can accept XLR or 6.3mm balanced/unbalanced connection.
There is also an Aux line input via 2 x RCA on the rear panel and up to two CS4 call stations may be
connected via RJ45 on the rear panel.

DIP switches

Mic/Line inputs each have 2 DIP switches (30, 32, 34) which should be set for the input type.
The left DIP switch selects whether +20V phantom power is supplied to the XLR input for
condenser microphones or paging microphones with built-in chimes. This should be
switched to the down position if phantom power is required.
The right DIP switch selects the input level for XLR or 6.3mm jack. This should be switch to
the up position for microphones or the down position for line level inputs to match the input
level correctly and avoid overloading the channel.
Be sure to make these DIP switch settings when the amplifier is switched off and prior to
connecting inputs to the RM244V. Making any changes when the amplifier is powered up
may cause loud bangs through the system which can damage the speakers.
Mic/Line 1 input also has a priority function, which can reduce the output of the other channels
(Mic/Line 2 & 3, Aux and Media) when MIC 1 signal is detected and returns them to normal when
MIC 1 signal is silent.
The amount by which this "override" mutes the other channels is set by adjusting the MUTING LEVEL
control (36). Turning this control clockwise increases the muting effect on the other channels and
turning anti-clockwise reduces the muting effect.
The priority function for Mic/Line 1 does not affect any CS4 call stations connected to the RM244V.
With the power switched off, connect microphones or mono line inputs to Mic/Line inputs 1, 2 and 3
using good quality XLR or 6.3mm jack leads.
Connect any other line level audio inputs to the AUX IN (29) connectors on the rear panel using a
good quality RCA lead. Since the amplifier has a mono output, stereo signals will be summed
together.
Further mixer-amplifiers, slave amplifiers or recording devices can be connected to the rear REC OUT
(recording output) sockets, again using a good quality RCA lead. This output carries the full mix of all
channels (including the internal media player) but is not affected by the MASTER volume control.
The RM244V also has RCA connectors for PRE OUT and AMP IN, which can be used as Send and
Return in a series loop for connecting audio processors or as Mix output and Slave input separately.
RM244V & CS4 User Manual