12
PA-CP
User Guide
Cable and Connector Information
You are likely to encounter the following audio connector types:
The
XLR
connector is 3 wire balanced. This has 3 connector pins: Pin 1 = ground (screen), Pin 2 =
signal hot (+), Pin 3 = signal cold (-). The jack sockets are the 3 pole
TRS
type. These are wired to
work with either the balanced TRS or the unbalanced 2 pole TS type plugs without cable modification.
The sockets have 3 connector pins: Inputs and outputs are Tip = signal hot (+), Ring = signal cold (-),
Sleeve = ground (screen). Headphones are Tip = left, Ring = right, Sleeve = ground. The
RCA
phono connectors are 2 wire unbalanced to connect to equipment such as CD players and domestic
amplifiers. The
Speakon™
connector type is used to feed the output of power amplifiers to the
loudspeakers. It can handle high power levels and can be locked into position.
To ensure best performance, we recommend that you use high quality audio cables and connectors,
and take time to check for reliable and accurate cable assembly. It is well known that many audio
system failures are due to faulty interconnecting leads. Avoid rev and - on balanced and
speaker cables as this will result in reverse polarity connections which may cause signal cancellation
and ‘phasing’ effects. Refer to the diagram below for how to wire unbalanced to balanced
connections.
It is fine to use a Y-adapter to feed one output to several inputs, but never use a Y-
adapter to sum two outputs into one input.
