CONNECTING THE S•com 4
The are several ways to interface the S•com 4 to support a variety of applications. The S•com 4 features servo-
balanced inputs and outputs, so connecting balanced and unbalanced signals is possible without any signal loss.
The S•com 4 can be used on a single instrument by connecting to a mixer channel's insert points, or on an entire
mix "in-line" between a mixer's outputs and a power amp or equalizer.
INSERT POINTS
Many mixers today provide channel and bus or group inserts. Insert points are input and output patch points that
interrupt the channel or bus signal so that external processors can be connected. Channel insert points are ideal
for connecting to when using the S•com 4 to process a single channel like a vocal, bass or guitar. Bus insert
points are ideal for compressing groups of instruments like vocals, strings or drums. If you are connecting to a
channel's insert points, you may have a single TRS jack for Send & Return. In this case, use an Insert "Y" Cable
that configured like the one in the wiring diagram below.
Insert Cable 1/4" male TRS connector to two male 1/4"
in send and return configuration.
Tip (send)
Sleeve (common)
Sleeve (common)
Tip (return)
IN-LINE
In live sound operation the S•com 4 can be installed in-line between a mixer and equalizer or power amplifier.
For these applications the S•com 4 provides both 1/4" TRS connectors and XLR connectors to easily interface
with most any professional audio device. Follow the wiring examples below for your particular installation.
Unbalanced 1/4" Connector
Signal
Ground
Balanced TRS 1/4" Connector
Signal (tip)
Signal (tip)
Ground
Signal (ring)
XLR Balanced Wiring Guide
Signal
Tip (signal)
Ground
Sleeve (ground)
Signal (ring)
Tip (signal)
Ring (signal)
1
2
3
End View
Ground
Sleeve (ground)
S•com 4 Connections
Return (ring)
Send (tip)
Send (tip)
Common
Return (ring)
Common
Hot
Common
Cold
Female XLR
Hot (2)
Common (1)
2
1
3
Solder Points
Cold (3)
Male XLR
17
Tip (send)
Ring (return)
Sleeve (common)
Hot (2)
Common (1)
1
2
2
3
3
Solder Points
End View
Cold (3)
Hot
Common
Cold
1