Cloud CX335 Manual de instalación y funcionamiento - Página 7

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Page 6

Hard Knee, Slow Time Constant (Slow Envelope)

This mode of operation will be the most noticeable (especially with high ratio settings and

fast dance tracks) as the point where compression takes effect is at a definite audio level.

Depress the knee and envelope switches. Set the ratio control at about 5:1 or even higher, if

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

and limiting. The higher the ratio the more audible the compression will be.

A high ratio setting will allow the threshold control to be set to the maximum input level

precisely. As the ratio is decreased the value of the threshold control should be reduced to

compensate.

Information on configuring the peak control is described in detail in section 2a, page 4. 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.

With this configuration, quieter signals should pass through the compressor unprocessed,

(no gain reduction taking place) but louder input signals above the threshold level will have a

significant amount of compression after the initial peak is passed unprocessed.

PLEASE TAKE SOME TIME TO READ THE REMAINDER OF THE MANUAL

Introduction

The Cloud CX335 Stereo Compressor Limiter has been designed to provide compression of

full range music signals and also be suitable for overload protection in a wide range of

applications. The unit can be applied equally to any discotheque or live installation as well

as in the recording studio and mastering facility.

Historically, it has often been impossible to establish what time constants are to be applied to

a compressors attack and release envelope when the signal dynamics are an unknown

quantity. The CX335 has intelligent 'Programme Dependant' circuitry, which makes the need

for attack and release controls totally redundant. Other features include the options of hard-

knee or soft-knee characteristics, a fully controllable 'Instant-attack' peak limiter, accurate

and informative metering, and remote control of the compressor side chain.

The CX335 may be used in either balanced or unbalanced systems with no internal re-

configuring.

Because the CX335 compressor offers a choice of traditional hard-knee, ratio style

compression or soft-knee compression, it is equally adept at creative work and unobtrusive

level control. With high ratio settings the compressor can perform the functions of an

intelligent programme-dependent limiter.

The control layout is simple and logical. For reasons that will become evident, the unit is

graduated assuming that of a hard-knee ratio style compressor, although the preferred mode

of operation is soft-knee where the transition from unity gain to gain reduction at the selected

ratio is progressive and occurs over a nominal 10dB input level range. In other words, in

soft-knee mode with high ratios, the unit will blend from gentle compression up to hard

limiting with no additional front panel adjustment.

15-07-02 V3

CX335: Installation and Operation Manual