Spirit FOLIO SX mixer - Manual (Page 7)

Page 6
STEREO INPUTS 13/14 & 17/18
These accept RCA phono jacks to allow easy connection to hi-fi equipment or DAT
players. The input is unbalanced, and ideal for pre-show music sources or signals that do
not require any EQ or effects.
STEREO INPUTS 15/16 & 19/20
These accept 3-pole `A’ gauge jacks, or 2-pole mono jacks which will automatically
ground the ‘cold’ input. Use these inputs for sources such as keyboards, drum machines,
synths, tape machines or as returns from processing units. The input is BALANCED for
low noise and immunity from interference, but you can use UNBALANCED sources by
wiring up the jacks as shown, although you should then keep 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.
Mono sources can be fed to both paths by plugging into the Left jack only.
MIX INSERTS
The unbalanced, pre-fade Mix insert point is a break in the output signal path to allow
the connection of, for example, a compressor/limiter or graphic equaliser. 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 mix fader.
The mix signal appears on the TIP of the plug and is returned on the RING. A ‘Y’
lead may be required to connect to equipment with separate send and return jacks as
shown below:
Left Signal
Right Signal
Ground
Signal
Ground
Ground
Headphones
Monitor Outputs
Direct Outputs
Signal +
Signal -
Screen
Signal Send
Signal Return
Gnd/Screen
Tip
Ring
Sleeve
Mix Inserts
Mix & Sub Outputs
Aux Outputs
Mono Output
MIX & SUB OUTPUTS
The MIX and SUB outputs are on 3-pole 3-pole ‘A’ gauge jack sockets, wired as
shown, and incorporate impedance balancing, allowing long cable runs to balanced ampli-
fiers and other equipment.
Send to External Device
Signal Send
Screen Signal Return
Insert Point
Return from External Device
Note: If XLRs are used, join Pins 1 & 3
and connect to cable screen.
Connect Pin 2 to signal.
(a) Balanced Connection
To External Device
Signal
Signal
Screen
Screen
Signal Ground
Signal Ground
Experience has shown that sometimes it is better
not to connect screen at external device end.
From FOLIO SX
Impedance Balanced
Output
From FOLIO SX
Impedance Balanced
Output
To External Device
(b) Unbalanced Connection