Input Connections
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-101 is provided with an Input Level Control that includes a negative feedback
(NF) circuitry, so the usable signal level range is wide. Input impedances and
levels are shown in the following table.
INPUT SPECIFICATIONS
CONNECTION
CH1
CH4
TAPE
INPUT
LOW Z
HIGH Z
ACTUAL
LOAD
IMPEDANCE
OPEN
FOR USE
WITH
NOMINAL
MICRO-
PHONES
OR
LOWER IMP
LINES
OR
LOWER IMP.
LINES
SENSITIVITY*
(PGM OUTPUT
LEVEL +4dB)
-60dB(0.78mV)
-35dB(13.8mV)
-10dB(245mV)
CONNECTOR
XLR TYPE
NC3FPP
PHONE JACK
RCA PIN JACK
* Sensitivity is the level required to produce a program out level of +4dB.
*0dB 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-101 are wired as follows: Pin 1 is ground (shield). Pin 2 is
cold (low, minus). Pin 3 is hot (high, plus)
— 6 —
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