Generally speaking, there are two rules to follow when connecting equipment outputs
to the inputs of other equipment.
1. Properly match the impedances of the outputs and inputs.
2. Connect low impedance outputs to high impedance inputs.
It goes without saying that not only input and output impedance matching but also
level matching should be taken into consideration. Each input channel of the MX-
106R is provided with an input TRIM control, so the usable signal level range is very
wide. Input impedances and levels are shown in the following table.
INPUT SPECIFICATIONS
CONNECTION
CH1
CH6
AUX
(1~2)
EFF/RET
GEQ
PWR/AMP
INPUT
LOW Z
HIGH Z
ACTUAL
LOAD
IMPEDANCE
50k
10k
50k
50k
10k
FOR USE
WITH
NOMINAL
50
TO 250
MICRO-
PHONES
50k
OR
LOWER IMP
LINES
10k
OR
LOWER IMP,
LINES
50k
OR
LOWER IMP,
LINES
50k
OR
LOWER IMP,
LINES
10k
OR
LOWER IMP
TRIM
POSI-
TION
10
0
10
0
SENSITIVITY
(PGM OUTPUT
LEVEL +4dB)
-55dBm (1.38mV)
-16dBm (123mV)
-35dBm (13.8mV)
-4dBm (1.23mV)
-20dBm (77.5mV)
+20dBm (77.5mV)
+4dBm (1.23V)
+4dBm (1.23V)
MAX BEFORE
CLIP INPUT
LEVEL
-34dBm (15mV)
+1.7dB (0.94V)
-14dBm (150mV)
+20dB (7.75V)
-2dBm (0.61V)
-2dBm (0.61V)
CONNECTOR
XLR TYPE NC3F
PHONE JACK
PHONE JACK
PHONE JACK
PHONE JACK
PHONE JACK
*Sensitivity is the level required to produce a program out level of +4dBm.
*0dBm is referenced to 0.775V RMS.
All XLR Type connectors are electronic balanced. Phone jack is unbalanced.
If the line going from one piece of equipment to another is long (more than 5m), we
recommend that balanced outputs be connected to balanced inputs.
As is described in the beginning of the Operating Instructions Manual, the connectors
of the MX-106R are wired as follows: Pin 1 is ground (shield). Pin 2 is cold (low,
minus). Pin 3 is hot (high, plus).
— 6 —
Input Connections
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