Installation Guide For Connecting A Microphone - Lightware MMX8x8-HDMI-4K-A User Manual

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2. Installation
2.3. Installation Guide for Connecting a Microphone
MMX8x4-HT400MC and MMX8x4-HT420M model
The device features a dedicated Special Audio Input Block for microphone. Before connecting a microphone
to the matrix device please read the instructions below.
These settings can be done from a computer using the
software. The application is available at www.lightware.com, install it on a Windows PC or a
Mac OS X and connect to the device via LAN, USB, RS-232.
Step 1. Always check the correct wiring of the microphone cable. See more details about the wiring in
Wiring Guide section. Microphone cable should be shielded with 2x0,22mm conductor, max. 50m long.
WARNING! Never apply phantom power with unbalanced cable, because it may harm the devices!
Step 2. Before the connection, please set these properties below:
Port Property
Advanced
-80dB and/
audio output Volume
or Mute
(BAL. OUT)
-80dB and/
Volume
or Mute
ATTENTION! Skipping the volume or mute setting can cause serious damage in the
speaker or the external sound system when phantom power is turned on!
Phantom
power
ATTENTION! Always turn off the phantom power before connecting the microphone!
Microphone
INFO: When the red LED lights on the rear side of the matrix, it displays that the phantom
input
power is switched on.
(MIC IN)
Input gain
EQ
(High,Hmid,
Lmid, Low)
Panorama
(Balance)
Lightware Device Controller
Lightware Device
Value LW3 command
Controller
-80 ˃ SET /MEDIA/AUDIO/O6.Volume=-80
MUTE
˃ SET /MEDIA/AUDIO/O6.Mute=true
dB
-80
-80
˃ SET /MEDIA/AUDIO/I9.Volume=-80
MUTE
˃ SET /MEDIA/AUDIO/I9.Mute=true
dB
-80
Off SET /MEDIA/AUDIO/I9.PhantomPower=false
+48V
GAIN
-12dB ˃ SET /MEDIA/AUDIO/I9.InputGain=-12
dB
-12
-12 +55
˃ SET /MEDIA/AUDIO/I9.PEQ1Gain=0
˃ SET /MEDIA/AUDIO/I9.PEQ2Gain=0
0
dB ˃ SET /MEDIA/AUDIO/I9.PEQ3Gain=0
0
-18 +18 ˃ SET /MEDIA/AUDIO/I9.PEQ4Gain=0
PAN
0
˃ SET /MEDIA/AUDIO/I9.Balance=0
0
L
R
MMX8x4-HT series – User's Manual
For more information about the LW3 protocol commands, see
Step 3. Connect the microphone.
a) In case of dynamic or wireless microphone: Skip this step and follow the instructions with Step 4.
b) In case of condenser microphone: Switch on the phantom power. Keep pressed the
more than 2 seconds to activate phantom power.
(LDC)
Port
Microphone
Audio Cable
input
(MIC IN)
WARNING! Phantom power supplies the condenser microphone by 48V via the microphone cable which
is necessary for normal operation of the condenser microphone. Application of the phantom power can
cause a damage if dynamic or wireless microphone is connected.
INFO: Always switch on the phantom power when the cabling and connecting have already done. Do not
disconnect the microphone when the phantom power is switched on!
Step 4. Set these properties below:
Port
Advanced
audio output
(BAL. OUT)
Microphone
input
(MIC IN)
Step 5. Talk to the microphone continuously. Increase the microphone
input gain slowly and check the signal indicator chart. It gives a
feedback about the optimal signal level.
INFO: Take care that peak led (PK!) never lights up! See more details in
Signal indicator chart
Step 6. If the signal level is low, set the optimal volume both the microphone
input and balanced output channel.
indicator chart for the optimal level!
INFO: Take care that peak led (PK!) never lights up! See more details in
Signal indicator chart
LW3 Programmers' Reference
Lightware Device
Property Value
Controller
Phantom
On ˃ SET /MEDIA/AUDIO/I9.PhantomPower=true
+48V
power
Lightware Device
Property Value
Controller
0
Volume 0dB
˃ SET /MEDIA/AUDIO/O6.Volume=0
dB
0
0
Volume 0dB ˃ SET /MEDIA/AUDIO/I9.Volume=0
0 dB
section.
Always check the signal
section.
12
section.
button
+48V
LW3 command
LW3 command
MIC input gain MIC signal
PK!
NOM.
SIG.
-12 +55
MIC input volume Output volume
0
0