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C onnec tions
Wiring conventions
Balanced
Unbalanced
Hot (+ve)
Signal
Cold (-ve)
Gnd/Screen
Gnd/Screen
Gnd/Screen
Tip
Ring
Sleeve
Signal Send
Signal Return
Gnd/Screen
Tip
Ring
Sleeve
Inserts
Installation
The D-MIX1000 uses various different types of audio connector: 3-pin XLR ,
3-pole jacks and RCA phono connectors. This section describes how to connect
external equipment to the console. Correctly-made cables of the proper type will
ensure peak performance from your mixer.
Mono Input Module
Mic Input
The mic input accepts XLR-type connectors and is designed to suit a wide range of
BALANCED or UNBALANCED low-level signals, whether from delicate vocals
requiring the best low-noise performance or close-miked drum kits needing
maximum headroom. Professional dynamic, condenser or ribbon mics are best
because these will be LOW IMPEDANCE. While you can use low-cost HIGH
IMPEDANCE mics, you do not get the same degree of immunity to interference on
the microphone cable and as a result the level of background noise may be higher.
If you turn the PHANTOM POWER on (J1 on the PCB fitted to position B) the
socket provides a suitable powering voltage for condenser mics.
DO NOT use unbalanced sources with the phantom power switched on. The voltage
on pins 2 & 3 of the XLR may cause serious damage.
The input level is set using the SENS Knob.
Line Input
Accepts 3-pole "A" gauge (TRS) jacks, or 2-pole mono jacks which will
automatically ground the "cold" input. Use this input for sources other than mics,
such as tape machines or CDs. The input is BALANCED for low noise and
immunity from interference, but you can use UNBALANCED sources by wiring
up the jacks as shown below, although you should then keep the cable lengths as
short as possible to minimise interference pick-up on the cable. Note that the ring
must be grounded if the source is unbalanced. Set the input level using the SENS
knob.
Insert Point
R e t u rn
The unbalanced, pre-EQ insert point is a break in the channel signal path, allowing
S e n d
limiters, compressors, special EQ or other signal processing units to be added in the
signal path. The Insert is a 3-pole "A" gauge jack socket which is normally bypassed.
When a jack is inserted, the signal path is broken, just before the EQ section.
The signal from the channel appears on the RING of the plug and is returned on the
TIP.
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