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True to the Music

Radial Engineering Ltd.

mPress™ Owner’s Manual

5

MAkING CONNECTIONS

Before  making  connections,  ensure  all  level  controls  are  turned 

down to zero (fully counter-clockwise), all switches are set in the out 

position  and  PA  system  speakers  turned  off.  This  prevents  power 

turn-on transients from damaging more sensitive components such as 

tweeters.  Plug the mPress power supply in. There is no power switch. 

Once connected, the mPress will spring to life. To verify power is being 

received, depress the MIC-1 ON switch to illuminate the LED. 

Locking XLR power supply included.

Test the microphone level with headphones 

before sending the signal to the mains.

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 OUT

PROGRAM

ON

ON

PHONES

LEVEL

LEVEL

GROUND

LEFT

RIGHT

1k

LEFT

RIGHT

INPUTS

MIC-1 INPUT

VU

VU

MIC INPUTS

LEFT

RIGHT

EXO-POD / GALLERY OUTPUTS

MAIN OUTPUTS

RIGHT

LEFT

MIC-2

MIC-1

+15VDC

-15VDC

+5VDC

1

2 3

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

LEFT

RIGHT

LOW

LOW

LOW

LOW

LOW

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 OUT

PROGRAM

ON

ON

PHONES

LEVEL

LEVEL

GROUND

LEFT

RIGHT

1k

LEFT

RIGHT

INPUTS

MIC-1 INPUT

VU

VU

MIC INPUTS

LEFT

RIGHT

EXO-POD / GALLERY OUTPUTS

MAIN OUTPUTS

RIGHT

LEFT

MIC-2

MIC-1

+15VDC

-15VDC

+5VDC

1

2 3

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

LEFT

RIGHT

LOW

LOW

LOW

LOW

LOW

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 OUT

PROGRAM

ON

ON

PHONES

LEVEL

LEVEL

GROUND

LEFT

RIGHT

1k

LEFT

RIGHT

INPUTS

MIC-1 INPUT

VU

VU

MIC INPUTS

LEFT

RIGHT

EXO-POD / GALLERY OUTPUTS

MAIN OUTPUTS

RIGHT

LEFT

MIC-2

MIC-1

+15VDC

-15VDC

+5VDC

1

2 3

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

LEFT

RIGHT

LOW

LOW

LOW

LOW

LOW

LOW

Connect your first microphone to the MIC-1 Input. You can use the front 

panel XLR or the one on the rear panel. 

Do not use front and rear 

inputs at once.

 They are simply wired in parallel for convenience. If 

phantom power is needed, activate the 48V power switch using a small 

screwdriver. This switch is recessed to avoid accidentally engaging or 

disengaging  phantom  power.  Connect  a  pair  of  headphones  to  the 

mPress and set the headphone level control half-way (12 o’clock) to 

start.  Slowly  increase  the  MIC-1  Input  level  until  you  see  the  input 

meter LED illuminate. Test the level for maximum input by speaking 

loudly until the RED LED illuminates. Then back down the level for 

extra headroom. Adjust the headphone level as you go along to suit. 

MIC  2  input  can  be  used  independently  on  a  second  source  in  a 

conference or town-hall meeting arrangement. In this case, connect 

using the same method as outlined above. When both mic inputs are 

engaged, they are summed after the limiter section to a mono output 

that will be present at each of the GALLERY OUTPUTS, the MAIN 

OUTPUTS, and in the HEADPHONES.

Once your mic levels are set, engage the MAIN OUT ON switch to 

activate the sends to the PA system and slowly raise the MAIN OUT 

LEVEL control until the desired output is achieved. 

The  mPress  ships  with  two  XLR  barrel  adapters  with  -30dB  pads 

to take the line level outputs of a mixing console down to mic level, 

allowing you to use the balanced XLR mic inputs.

Push IN to activate the 

48V phantom power for 

condensor microphones.

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 OUT

PROGRAM

ON

ON

PHONES

LEVEL

LEVEL

GROUND

LEFT

RIGHT

1k

LEFT

RIGHT

INPUTS

MIC-1 INPUT

VU

VU

MIC INPUTS

LEFT

RIGHT

EXO-POD / GALLERY OUTPUTS

MAIN OUTPUTS

RIGHT

LEFT

MIC-2

MIC-1

+15VDC

-15VDC

+5VDC

1

2 3

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

LEFT

RIGHT

LOW

LOW

LOW

LOW

LOW

LOW

mPress front view

Included

-30dB in-line 

signal pad

Headphone Safety Warning

Caution: Very Loud Amplifier

See back page for details

Summary of Contents for mPress

Page 1: ...arance are subject to change without notice Copyright 2015 Radial Engineering Ltd Radial Engineering Ltd 1588 Kebet Way Port Coquitlam BC V3C 5M5 tel 604 942 1001 fax 604 942 1010 email info radialeng com web www radialeng com www radialeng com True to the Music Owner s Manual TM ...

Page 2: ...ng about something or feel that details may be missing please visit the mPress FAQ page on the Radial website This is where we post questions from users and helpful updates If you still find yourself in need of answers feel free to drop an email to info radialeng com and we will do our very best to answer in short order Now get ready to broadcast that message with more authority than ever Specific...

Page 3: ...put on a press recorder or PA system or to a high level to drive Exo Pods Each optional Exo Pod is equipped with 10 XLR and four 3 5mm outputs A trim control is provided on the Exo Pod to reduce the level from the mPress making it suitable for connection for a variety of mic or line level devices Star Configuration Series Configuration 48V Made in Canada MULTI CHANNEL PRESS BOX MIC 2 INPUT 48V MIC...

Page 4: ...el control iNPUT 3 5mm and RCA consumer line level input for laptop tablet or iPod music playback LEDs Metering lets you know signal is ac tive or overloading RELEASE Used to set the speed at which the limiter resets itself MAIN OUT Level Adjusts the overall output level going to the PA system MAIN OUT ON Activates the left and right MAIN outputs 1 2 gALLERY oUTPUTS First two dual level outputs wi...

Page 5: ...d low setting to feed mic level inputs Program inputs and RCA inputs are for the output of a console or music playback device These are wired in parallel with the front panel program inputs XLR MAIN OUTPUTS Used to feed a pair of powered speak ers or mixer to supply audio to the audience gnd lift Ground lift switch disconnects the ground on pin 1 at the XLR program outputs low HIGH Recessed switch...

Page 6: ...GRAM INPUTS WER www radialeng com DO NOT USE WHEN FRONT GND LIFT 3 4 5 6 7 8 LEFT RIGHT LOW LOW LOW LOW LOW LOW Connect your first microphone to the MIC 1 Input You can use the front panel XLR or the one on the rear panel Do not use front and rear inputs at once They are simply wired in parallel for convenience If phantom power is needed activate the 48V power switch using a small screwdriver This...

Page 7: ...ddress this occurrence It is important that you practice using the limiter on the mPress as the effect can be a bit tricky to set up at first There are two controls on the limiter The first is the THRESHOLD This sets the level at which the limiter starts to kick in and compress the signal preventing distortion when the speaker gets too loud Start with the THRESHOLD turned to its highest setting fu...

Page 8: ...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 th...

Page 9: ...n you have a panel of speakers you can use the mPress to distribute the outputs of a mixing console via the PROGRAM INPUTS In this configuration you can also connect backup microphones through the mPress MIC INPUTS which will keep running even if the mixing console goes down or loses power GND LIFT Ground lift switch disconnects the ground on pin 1 at the XLR TRIM Adjust the output level if the si...

Page 10: ...g what is commonly known as a star network configuration R LIFT LIFT 1 LIFT LIFT LIFT LIFT LIFT LIFT LIFT LIFT A TRIM B D C THRU INPUT LOOP 9 10 7 8 2 4 3 5 6 Made in Canada 10 CHANNEL PRESS BOX EXPANDER mPress EXO POD R LIFT LIFT 1 LIFT LIFT LIFT LIFT LIFT LIFT LIFT LIFT A TRIM B D C THRU INPUT LOOP 9 10 7 8 2 4 3 5 6 Made in Canada 10 CHANNEL PRESS BOX EXPANDER mPress EXO POD R LIFT LIFT 1 LIFT ...

Page 11: ... STEREO SOURCE ON SWITCH HIGH PASS FILTER ACCUSTATE MIC PRE WITH MIC LEVEL CONTROL GAIN CW 48V PHANTOM POWER ON OFF Female Female HPF2 ON STEREO SOURCE REAR PANEL 1 4 PHONO INPUT PHONO INPUT FRONT PANEL 1 8 PHONE INPUT STEREO SOURCE FRONT PANEL PHONO INPUT mPress Block Diagram Audio Circuit Type Low Noise Active Buffer Frequency Response 20Hz to 20KHz 0 1 5dB Total Harmonic Distortion 0 001 4dB Dy...

Page 12: ...modification by any other than an authorized Radial repair center THERE ARE NO EXPRESSED WARRANTIES OTHER THAN THOSE ON THE FACE HEREOF AND DE SCRIBED ABOVE NO WARRANTIES WHETHER EXPRESSED OR IMPLIED INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE SHALL EXTEND BEYOND THE RESPECTIVE WARRANTY PERIOD DESCRIBED ABOVE OF THREE YEARS RADIAL SHAL...

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