Installation Guide For Connecting A Microphone - Lightware MMX8x4-HT420M User Manual

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4. Installation
4.5. Installation Guide for Connecting a Microphone
MMX8x4-HT400MC and MMX8x4-HT420M
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
Controller (LDC) software. The application is available at www.lightware.com, install it on a
Windows PC or a macOS and connect to the device via LAN, USB, RS-232.
Step 3. Always check the correct wiring of the microphone cable. See more details in the
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 4. Before the connection, please set these properties below:
Port Property
Advanced
audio output -80dB and/
Volume
(AUDIO or Mute
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!
When the red LED lights on the rear side of the matrix, it displays that the phantom power
Microphone
input is switched on.
(MIC IN)
Input gain
EQ
(High,Hmid,
Lmid, Low)
Panorama
(Balance)
model#balance #volume #advanced #audio#mic #microphone
Software Control – Lightware Device
Lightware Device
Value LW3 command
Controller
ç SET /MEDIA/AUDIO/O6.Volume=-80
ç SET /MEDIA/AUDIO/O6.Mute=true
ç SET /MEDIA/AUDIO/I9.Volume=-80
ç SET /MEDIA/AUDIO/I9.Mute=true
Off ç SET /MEDIA/AUDIO/I9.PhantomPower=false
-12dB ç SET /MEDIA/AUDIO/I9.InputGain=-12
ç SET /MEDIA/AUDIO/I9.PEQ1Gain=0
ç SET /MEDIA/AUDIO/I9.PEQ2Gain=0
0
ç SET /MEDIA/AUDIO/I9.PEQ3Gain=0
ç SET /MEDIA/AUDIO/I9.PEQ4Gain=0
0 ç SET /MEDIA/AUDIO/I9.Balance=0
MMX8x4-HT series – User's Manual
For more information about the LW3 protocol commands, see
Step 5. 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.
Port
Microphone
Cable Wiring Guide
input
(MIC IN)

WARNING!
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:

disconnect the microphone when the phantom power is switched on!
Step 6. Set these properties below:
Port
Advanced
audio output
(AUDIO OUT)
Microphone
input
(MIC IN)
Step 7. Talk to the microphone continuously. Increase the microphone
INFO:

Panorama or Balance Settings
Step 8. If the signal level is low, set the optimal volume both the

INFO:
Panorama or Balance Settings
Applied firmware package: v1.3.0 | LDC software: v2.4.2
Lightware Device
Property Value
Controller
Phantom
On
power
Phantom power supplies the condenser microphone by 48V via the microphone cable which
Always switch on the phantom power when the cabling and connecting have already done. Do not
Lightware Device
Property Value
Controller
Volume 0dB
Volume 0dB
input gain slowly and check the signal indicator chart. It gives a
feedback about the optimal signal level.
Take care that peak led (PK!) never lights up! See more details in
section.
microphone input and balanced output channel. Always check the
signal indicator chart for the optimal level!
Take care that peak led (PK!) never lights up! See more details in
section.
35
LW3 Programmers' Reference section.
button
LW3 command
ç SET /MEDIA/AUDIO/I9.PhantomPower=true
LW3 command
ç SET /MEDIA/AUDIO/O6.Volume=0
ç SET /MEDIA/AUDIO/I9.Volume=0
MIC input gain MIC signal
MIC input Output volume
volume