R E A R PA N E L
PA G E 5
M X 8 8 3 I N S TA L L AT I O N & O P E R AT I O N M A N U A L
7
8
9
10
1
CHANNEL
INPUTS
Each channel has two inputs:
XLR input - This is a balanced input. It accepts mic or line level signals
depending on the adjacent gain switch position. The XLR will also have
+15V phantom power if selected on the adjacent switch.
RCA input - This is an unbalanced line level input. The two RCA sockets are
stereo, left and right.
P/P – PHANTOM POWER
15V phantom power is available for condenser or electret microphones on
the XLR input when this switch is in the “ON” position.
MIC / LINE
These two switches control the sensitivity of the XLR input. In the “MIC”
position the XLR input is suitable for use with microphones; in the “LINE”
position the XLR input is suitable for use with a balanced line level signal.
NOTE: Both MIC/LINE switches must be in the same
position for correct operation of the balanced input.
NOTE: The MIC/LINE switches only affect the XLR input.
DIRECT
OUT
A unique feature of the MX883 is the individual direct output available for
all 8 channels. The direct outputs are a mono sum of the stereo inputs and
XLR input and are accessed via balanced TRS 1/4” sockets for each
channel. The level of each output is 0dBu (nominal). The direct outputs
are adjustable to be pre or post the channel level control, see the Internal
Adjustments.
REC OUT & AUX REC OUT
The REC OUT output is on unbalanced RCA connectors. The output is not
affected by the MASTER volume control.
LEFT, RIGHT AND AUX OUTPUT
The OUTPUT XLR’s provides balanced line level signal of the left, right and
aux channels respectively.
NOTE: When wiring the LINE output as unbalanced, Pin2
should be wired as hot and Pin1 should be wired as ground/shield.
Do not wire Pin3.
LINK
BUS
This connector is used for linking two MX883’s together. A short cable
(<300mm) connecting pin for pin should be used. When linked all
16 channels will sum together and both master and slave outputs will work
independantly.
The buses sum pre master level controls, alowing the outputs on either the
master or slave unit to be used.
MASTER/SLAVE
SWITCH
When linking two MX883’s only one mixer should be set to master. The
other should be set to slave. When an MX883 is used on its own, this
switch should be set to master.
IEC MAINS INPUT SOCKET
This is a standard IEC 3 pin socket. It accepts a standard IEC mains cable,
provided. The fuse draw contains the mains fuse and a spare. The mains
fuse is a time lag (slow blow) HRC 20mm x 5mm ceramic type fuse.
The ratings are:
230V/240V model 100mA
115V model 200mA
IMPORTANT: Always replace the fuse with one of the same value
and
type.
NOTE: Always disconnect power to the amplifi er before
replacing
fuses.
OPTIONAL MODULE INPUTS
This socket is used with a tone module and/or VCA module.
1
2
3
4
5
6
7
8
9
10
2
3
4
5
6
