Yamaha MX400 Notice D'utilisation page 7

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5
high pass filter switch
80
This switch cuts the input signal below 80 Hz at 12dB/octave. The filter is
turned on when the switch is pressed in.
By using the high pass filter, you can reduce or eliminate wind noise, mic
pop noise, and power supply hum etc.
6
EQ controls (HIGH, MID FREQ, MID, LOW)
This is a 3-band equalizer with center frequencies, range, and type as shown
below.
HIGH:
12 kHz
MID:
250 Hz ~ 5 kHz (variable)
LOW:
80 Hz
The frequency response is flat when the knob is in the center position.
20
250
10
0
–10
–20
20
50
100
200
EQ switch
This switch turns the EQ on/off. When the switch is pressed in the EQ is on.
In addition to bypassing the EQ when it is not being used, this switch pro-
vides a convenient way to compare the equalized and unequalized signals.
7
AUX 1 / AUX 2 controls
These adjust the signal level that is sent to each output AUX SEND 1 and
AUX SEND 2. These signals are pre-fader (i.e., they are taken from before
the fader adjustment). Nominal level is at 3 o'clock position.
8
AUX 3 / AUX 4 / AUX 5 controls
These adjust the signal level that is sent to each output AUX SEND 3, AUX
SEND 4 and AUX SEND 5.
The signals controlled by AUX 3 and AUX 4 will depend on the setting of
the PRE switch.
• When the PRE switch is not pressed
They control the post-fader signal.
• When the PRE switch is pressed
They control the pre-fader signal.
AUX 5 controls the post-fader signal.
Nominal level is at 3 o'clock position.
+/–15dB shelving type
+/–15dB peaking type
+/–15dB shelving type
MID FREQ
5k
500
1k
2k
5k
10k
20k
Frequency (Hz)
3
Input modules
50k
MX400 User's Guide

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