Yamaha M3000-24 Manual Do Utilizador

 

The M3000-24 provides 24 input channels, and the 
M3000-40C provides 40 input channels. All input 
channels have the same specifications.

 

A

 

Phantom power switch/

 

 indicator

 

This switch turns the +48 V phantom power on/off 
for each channel. When phantom power is on, the +48 
V indicator located above the switch will light. If you 
wish to use phantom power, first make sure that the 
PHANTOM MASTER switch (page 28) located on the 
rear panel is turned on.

 

B

 

 control

 

This control adjusts the input sensitivity. Levels sup-
ported are –16dB ~ –60 dB when the Pad switch (

 

3

 

) 

is off, and +10dB ~ –34dB when the switch is on.

 

C

 

 pad switch

 

This switch attenuates the input signal by 26 dB. 
When the switch is pressed (

), the pad is on.

 

D

 

(phase) switch

 

This switch reverses the phase of the input signal. 
When the switch is pressed (

), the phase is 

reversed.

 

E

 

 (high pass filter) control

 

This controls the cutoff frequency of the high pass fil-
ter. The range is 20Hz–400Hz.

 

F

 

 switch

 

This switch turns the high pass filter on/off. When the 
switch is pressed (

), the high pass filter is on, and 

the signal component below the frequency specified 
by the HPF control (

 

5

 

) will be attenuated by 12 dB/

oct.

 

G

 

 control

 

This is a four-band equalizer which can boost/cut 
each band over range of 

 

±

 

15 dB. HI-MID and LOW-

MID provide switches that let you change between 
two settings of Q (filter steepness). The center fre-
quency, Q value, and gain range of each band are as 
follows.

 

H

 

 switch

 

This switches the equalizer on/off. When the switch is 
pressed (

), the equalizer is on.

1
2
3
4
5
6

8

P

P

P

O

P

J

I

7

J

L

K

M

N

 

HI

1 kHz–20 kHz

0.667

 

±

 

15 dB

HI-MID

0.4 kHz–8 kHz

1.41/2.88

LO-MID

80 Hz–1.6 kHz

1.41/2.88

LO

30 Hz–600 Hz

0.667