Installation manual

Community S-Series - Operation and Installation Manual - Page 26
WIRING NEUTRIK TYPE CONNECTORS
The diagrams below show how connections are made to a Neutrik Speakon
TM
style
loudspeaker connector. Terminations may be soldered, or made by means of their built-in
screw and pressure clamp. If using the pressure clamp, it’s important to tighten it fully,
then to wait about ten minutes (longer is better), then to tighten it again. This is because
copper wire flows under pressure. After initially tightening the screw clamp, some minutes
later the screw will no longer be as tight due to the effect of the compression on the
copper. Typically, only one cycle of “tighten – wait – re-tighten” is required for a secure
connection.
Figure 8: Single Amp Connections
Figure 9: Bi-amp Connections
DANGER: When wiring the amplifier(s) to the loudspeaker(s), always power-down the
amplifier(s) and disconnect their AC Mains plug(s). Many modern, high power amplifiers
can deliver enough voltage and current to cause a harmful or lethal electric shock. Shocks
from very low frequencies, such as kick drums, can cause the human heart to stop beating
at relatively low power levels.
WARNING: After wiring the amplifier(s) to the loudspeaker(s), first power up all devices
that are upstream of the amplifier, such as mixers, equalizers, compressor/limiters, etc.,
before powering-up the amplifier. This is to avoid passing any clicks or pops that may
originate in the upstream devices to the loudspeakers. The amplifier should initially be
powered-up with its gain controls turned all the way down. After making sure that a
continuous signal is present, such as a CD playing, slowly raise the level of the gain
controls to establish that the wiring has been installed correctly. Only then should the
loudspeaker be operated at normal output levels.
CAUTION WHEN BI-AMPING: In the bi-amp mode, be particularly careful to insure that
the connections to the low-frequency and high-frequency drivers have been wired correctly.
If the amplifier channels are inadvertently swapped, the low-frequency content could cause
damage to the high-frequency driver or your amplifier. At best, it will simply sound very
bad.