4
TOP PANEL FEATURES
Note:
The channels have essentially the same controls with some minor variations between Channels 1-16, 17-20, and 21-24.
The three different channel types are shown here.
1.
MIC INPUT –
Connect a microphone to these inputs with an XLR
cable.
2.
LINE INPUT –
Connect line-level devices to these inputs with 1/4"
cables.
3.
INSERT –
Use a standard 1/4" TRS cable to connect an external
processor (such as a compressor, limiter, external EQ unit, etc.) to
this jack. The signal will be taken after the channel's gain control
and returned before the channel's EQ controls.
4.
GAIN –
Adjusts the channel audio level (pre-fader and pre-EQ
gain). Adjust this so that the PEAK LED just barely lights up during
the loudest parts of the song.
5.
LOW CUT FILTER –
When this button is depressed, that channel's
audio will be sent through a 75 Hz low-frequency filter with a slope
of 18 dB per octave. This is useful for reducing hum and other low-
frequency noise when using microphones.
6.
HI EQ (TREBLE) –
Adjusts the high (treble) frequencies of the
channel.
7.
MID EQ –
Adjusts the mid-range frequencies of the channel.
8.
MID FREQUENCY SELECTOR –
Adjusts the frequency band
affected by the MID EQ knob.
9.
MID-LOW –
Adjusts the 500 Hz frequency band.
10.
LOW EQ (BASS) –
Adjusts the low (bass) frequencies of the
channel.
11.
AUX SEND CHANNEL VOLUME –
Adjusts the audio level sent
from that channel to the Aux Channel (which is sent out the AUX
SENDS and controlled by the AUX SENDS VOLUME knobs). The
top two knobs can adjust the pre- or post-fader levels (as
determined by the AUX PRE-/POST-FADER SWITCH). The bottom
knob can adjust the level of the signal sent to the mixer's effects
processor.
12.
AUX PRE-/POST-FADER SWITCH –
When the button is
depressed, the audio sent to the corresponding AUX SENDS is
taken before the channel's fader. When the button is raised, the
audio sent to the AUX SENDS is taken after the channel's fader.
13.
CHANNEL PAN / BALANCE –
If this knob is labeled "PAN," it
adjusts the (mono) channel's position in the stereo field. If the knob
is labeled "BAL," it adjusts the balance between the two mono
channels of that stereo signal.
14.
PEAK LED –
The LED will flash if the signal is clipping. If this
happens, decrease the setting of the GAIN knob or CHANNEL
FADER.
15.
CHANNEL FADER –
Adjusts the audio level on the channel.
16.
CHANNEL MUTE –
Press this button to mute/unmute the channel.
The channel's audio will only be sent to its INSERT or heard in the
Solo Channel when its SOLO button is depressed.
17.
CHANNEL ASSIGNMENT –
Use these buttons to send the channel
to a subgroup, multiple subgroups, and/or the main mix. Subgroup
levels are controlled by the SUBGROUP VOLUME FADERS; the
main mix level is controlled by the MAIN MIX FADER.
18.
SOLO –
When this button is depressed, the audio will be heard in
the Solo Channel, which will become the only audio sent to the
PHONES OUTPUT and CTRL OUTS. The LED METERS will also
display the audio levels, which are controlled by the PHONES and
CTRL ROOM volume knobs.
19.
INPUT SELECTOR –
On Channel 23/24, this button is used to
select whether the channel's audio input source is its LINE INPUTS
or the mixer's USB PORT (which will receive audio from a
connected computer). When the button is depressed, the USB PORT is selected; when it is raised, the LINE INPUTS
are selected.
1
2
3
1
2
2
2
2
4
5
6
7
8
10
4
4
5
6
7
9
10
19
6
7
9
10
11
11
12
11
11
13
15
16
17
17
17
18
14
11
11
12
11
11
13
15
16
17
17
17
18
14
11
11
12
11
11
13
15
16
17
17
17
18
14
Channel types:
