11
—Owner’s Manual
Meter Section
aLevel meters
These meters show the signal levels from –10 dB to +6 dB. When the METER SELECT switch
O is set to “ ”, they show the track signal levels during recording and playback. When the
METER SELECT switch is set to “STEREO”, they show the STEREO OUT signal levels.
bREC SELECT indicator
These indicators show which tracks are selected for recording. They flash when you select
recording sources by the REC SELECT switches N, and light up continuously when you press
the button to start recording.
cPOWER indicator
This indicator lights up when you turn on the power to the unit.
Input/Output Section
dMIC/LINE INPUTs 1–4
Use these 1/4" TRS phone jacks to connect microphones and electronic musical instruments
such as a synthesizer to the MT400.
eINSERT I/O
Use these TRS phone jacks to output, then input channels 1 and 2 signals. Typically, signal
processors, such as compressors, limiters, and noise gates are connected to these jacks. Signals
output from the mixer section are processed on the effects processor and returned to the
mixer via these jacks. (See page 28)
fSTEREO INPUTs
Use these 1/4" phone jacks to connect line-level sound sources that have stereo outputs, such
as a synthesizer and a CD player. They can also be used to return the processed stereo signals
from external effects processors, such as a reverb unit. (See page 29)
gAUX SEND
Use these 1/4" phone jacks to output the channel signals adjusted by the AUX controls 3. You
can use these as effect sends by connecting to the effects processors’ inputs. (See page 29)
4
+6
+3
0
–5
–10
+6
+3
0
–5
–10
POWER
321 RL
REC

a

b

c

4TR
REC
AUX SEND
STEREO INPUT
MIC/LINE INPUT
INSERT I/O
INSERT I/O
12
1
2
345L6R8R7L

ge

d

f