ACTIVE
Two cable connections are required for each loudspeaker: one for mains power and one for the audio signal. The mains cable is specically supplied
to comply with local statutory safety approvals and alternatives should not be substituted. If you intend to use your loudspeakers in an alternative
territory, please contact ATC for advice. The mains connection must always be earthed.
The signal cable(s) and plug(s) should be of a good quality and XLR terminated. Poor cable and plug quality will compromise the performance of
your loudspeakers.
Balanced cable configuration is the preferred option, however unbalanced connection is possible. Diagrams 3 & 4 illustrate the signal cable
connections required for each option. Balanced (XLR-XLR) connection oers lower noise and better immunity to “hum” pick-up. Unbalanced
(XLR-RCA Phono or two-pole jack) connection carries risk of “hum” caused by multiple signal earths. Hum problems resulting from unbalanced
connection may be reduced by making ONE of the following modications to the signal cable:
If the driving pre-amp is “double insulated” (i.e. has no mains earth), disconnect the signal cable screen at the RCA phono plug end.
Disconnect the signal cable screen at the XLR end. This option will make the source the reference signal earth.
Connection
Signal Cable Options
3.1
3.2
SCM20ASL/ASLT SECTION THREE
DIAGRAM 3
DIAGRAM 4
To Next Page
Loading...
