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CX335: Installation and Operation Manual

Intelligent Limiter

Due to the programme dependant nature of the compressor section and its split frequency

stereo side chain, the preferred method of limiting is to use the compressor section with a

ratio of ∞ to 1. Depress the knee switch and release the envelope switch. Set the threshold

to the level where limiting is to commence. Set the ratio control fully clockwise. Turn the

gain control so that the output level on the VU meters measures about the same in bypass

mode as it does with the compressor operational. Information on configuring the peak

control is described in detail in section 2a, page 4.

With this configuration, quieter signals will pass through the compressor unprocessed, (no

gain reduction taking place) but louder input signals above the threshold level will have a

definite maximum output level that will never be exceeded (L.E.D'S will light on the gain

reduction meter). The peak Limit LED should never flicker if it is set correctly and providing

that the gain control is not adjusted too high.

Soft Knee, Slow Time Constant (Slow Envelope)

This mode of operation will still yield musical results, but will tend to allow the very quick

dynamics through unprocessed. Therefore you will require more peak limiting and a high

overhead in speaker power handling. Depress the envelope switch and release the knee

switch. Set the threshold to somewhere between 10dB and 15dB LOWER than your

average input level and set the ratio control somewhere between 5:1 and 10:1, if you require

compression of the audio signal, but 20:1 or higher if you require compression and limiting.

With normal programme level running through the CX335, rotate the gain control so that the

output level on the left and right channel VU meters measures about the same in bypass

mode as it does with the compressor operational. Information on configuring the peak

control is described in detail in section 2a, page 4.

With this configuration, the louder the input then the more compression will take place. A

perceived increase in average overall volume should be noted, although the peak output

level should be slightly lower. Some dynamics might cause other problems further down the

signal path.

15-07-02 V3

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