
True to the Music
Radial Engineering Ltd. mPress™ Owner’s Manual
7
ADDING STEREO FEEDS FROM A MUSIC PLAYBACK DEVICE
The PROGRAM section of the mPress is equipped with a number of 
unbalanced line level inputs for connecting and distributing additional 
audio  sources.  This  allows  you  to  connect  the  output  of  a  mixing 
console  for  larger  setups  when  more  than  two  microphones  are 
required. You can also use these inputs to connect a device for music 
playback  to  feed  background  music  through  powered  loudspeakers 
while the audience waits. 
On the front panel there are 3.5mm and RCA program inputs, while 
the back panel has ¼” and RCA inputs. Only one set of inputs should 
be used as these are all parallel connections. When the PROGRAM 
ON switch is depressed, these inputs  are  activated  and  sent  to  the 
GALLERY  OUTPUTS,  MAIN  OUTPUTS,  and  the  HEADPHONES. 
When  using  powered  loudspeakers,  ensure  that  your  MAIN  OUT 
is  turned  on  and  set  to  an  appropriate  level  before  turning  up  the 
PROGRAM LEVEL.   
CONNECTING THE GALLERY OUTPUTS
The mPress is equipped  with  8  dual  level  transformer-isolated  XLR 
outputs  to  distribute  your  signal  to  a  number  of  recording  devices 
without  any  loss  in  sonic  clarity.  Each  of  these  outputs  is  a  mono 
sum  of  the  engaged  MIC  INPUTS  1  and  2,  along  with  any  active 
PROGRAM inputs. The rst two GALLERY OUTPUTS are on the front 
of the mPress for convenience, while the remaining six can be found 
on the rear panel. Recessed switches next to each output allow the 
user to set the signal levels to HIGH or LOW, allowing a variety of line 
or mic level devices to be connected.
When connecting a mic level device, push IN the recessed switch to 
set to LOW output. When connecting a line level recorder or an Exo-
Pod module, disengage the recessed switch for HIGH output. 
TEST TONE
The mPress also features a 1kHz signal generator that sends a test 
tone to each of the GALLERY OUTPUTS. This allows each recording 
device  to  be  simultaneously  calibrated  with  the  mPress  for  optimal 
recording level. Push IN the TEST switch to activate the test tone.
48V
®
Made in Canada
MULTI CHANNEL
PRESS BOX
MIC-2 INPUT
48V
MIC-1 LEVEL
ON
GAIN GAIN
100Hz ON 100Hz
MIC-2 LEVEL 1
 Press
m
Press
2
PUSH SWITCH FOR LOW OUTPUT
LOW LOW
LIMITER
THRESHOLD
LO HI FAST
ON
RELEASE
TEST
LEVEL
SLOW
MAIN OUTPROGRAM
ON ON
PHONES
LEVELLEVEL
GROUND
LEFTRIGHT
1k
LEFTRIGHT
INPUTS
MIC-1 INPUT
VU VU MIC INPUTS
LEFTRIGHT
EXO-POD / GALLERY OUTPUTS
MAIN OUTPUTS
RIGHT LEFT
MIC-2 MIC-1
+15VDC
-15VDC
+5VDC
1
23
4
 PROGRAM INPUTS
COM
POWER
www.radialeng.com
Made in Canada
DO NOT USE WHEN FRONT XLR IN USE
GND
LIFT
3
4
5
6
7
8
LEFTRIGHT
LOW LOW LOW LOWLOW LOW
48V
®
Made in Canada
MULTI CHANNEL
PRESS BOX
MIC-2 INPUT
48V
MIC-1 LEVEL
ON
GAIN GAIN
100Hz ON 100Hz
MIC-2 LEVEL 1
 Press
m
Press
2
PUSH SWITCH FOR LOW OUTPUT
LOW LOW
LIMITER
THRESHOLD
LO HI FAST
ON
RELEASE
TEST
LEVEL
SLOW
MAIN OUTPROGRAM
ON ON
PHONES
LEVELLEVEL
GROUND
LEFTRIGHT
1k
LEFTRIGHT
INPUTS
MIC-1 INPUT
VU VU MIC INPUTS
LEFTRIGHT
EXO-POD / GALLERY OUTPUTS
MAIN OUTPUTS
RIGHT LEFT
MIC-2 MIC-1
+15VDC
-15VDC
+5VDC
1
23
4
 PROGRAM INPUTS
COM
POWER
www.radialeng.com
Made in Canada
DO NOT USE WHEN FRONT XLR IN USE
GND
LIFT
3
4
5
678
LEFTRIGHT
LOW LOW LOW LOWLOW LOW
Push IN to activate a 1kHz 
test tone to test the input 
level of the recorders.
If using a mic level device, 
push IN the recessed switch 
to set for LOW output.
If using a line level device, 
disengage the recessed 
switch to set for HIGH output.
mPress rear view