MGP32X/MGP24X Owner’s Manual 37
Using Other Functions

Applying the Low Pass Filter (LPF)

A Low Pass Filter (LPF) can be applied to the signal output from
the STEREO bus L/R to the MONO OUT connector. LPF is com-
monly used for subwoofer applications.
1. Press the SETUP button below the display
repeatedly if necessary until the SETUP (2/4)
LPF (MONO) page appears.
2. Rotate Knob 1 to select “LPF ON,” and then
rotate Knob 2 to set it to “ON.”
The LPF indicator next to the MONO master fader comes on
3. Rotate Knob 1 to select “Frequency,” and then
rotate Knob 2 to set the frequency.

Using the Ducker function

The Ducker function automatically lowers the level of back-
ground music to accommodate the voice of an announcer coming
in on another channel.
Ducker signal flow
1. Connect a music player or device for playing
background music.
Connect the device to CH29/30 or CH31/32 {CH21/22 or
CH23/24}.
To connect the USB device or iPod/iPhone, set the input
select switch to USB IN ( ) or iPod IN ( ) respectively.
2. Turn on ( ) the DUCKER switch of the chan-
nel to which the device is connected in step 1,
and then rotate the GAIN knob to adjust the
input level of the channel.
3. Connect a microphone to the input source
channel.
For the MGP32X unit connect the microphone to CH24 and
for the MGP24X unit connect the microphone to CH16, or
assign the source channel to GROUP OUT 1.
4. Press the SETUP button below the display
repeatedly if necessary until the (3/4) DUCKER
page appears.
5. Confirm that “Source” is selected, and then
rotate Knob 2 to set the input source to “CH24
{CH16}” or “GROUP1.”
If you automatically control the volume of background music
via an independent microphone input, it is recommended that
you set the input source to CH24 {CH16}. If you want to
control the volume of background music via multiple micro-
phones inputs, you should set the input source to “GROUP1.”
6. Adjust the input of the microphone to an
appropriate level.
7. Turn on ( ) the ON
switch of the channel
to which the micro-
phone is connected in
step 3, and then raise
the channel fader to
around “0” (nominal).
Continue to next page
CH29/30
(CH21/22)
CH31/32
(CH23/24)
CH24
(CH16)
GROUP1
DUCKER
SOURCE
Volume detection
Volume control
Set to iPod IN ( )Set to USB IN ( )
Level adjustment
Turn on
Turn on
“0”