The side chain connector is a DB 9 connector. The inputs and outputs are balanced. Keep
in mind that this is an insert point and must be normaled when not being used. If a
connector is not installed in the back of the unit, the side chain insert can be ignored
because it is disabled.
The side chain is for inserting an equalizer into the control path. Due to the design
of the link system, separate equalizers (with identical settings) must be used for all
channels to achieve channel matched operation when in the link mode. This scheme allows
reliable signal averaging regardless of the phase relationship between the audio channels.
The approach used in TRAKKER is beneficial for stereo FM broadcast where phase
relationships can affect the stereo generator. In a conventional link circuit (one which
uses a single EQ for all channels) out of phase material is ignored by the compressor.
Many different sound can be created by using an equalizer in the side chain. TRAKKER
can respond to a frequency that is causing a problem. In the hard knee mode, if all lows
are cut and the hi frequency content is boosted, the TRAKKER can function as a de'ssser.
If every thing below 80 Hz is cut, TRAKKER will not respond to the low frequency content
of a signal. By modifying the side chain frequency response, infinite variations can be
created.