Ashly LIMITER/COMPRESSORS CL-100 Owner's Manual - Page 16

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The concept of stereo operation

is sometimes confusing, but it is less difficult

to understand if you keep

a few basic rules

in mind.

When the switch

is in:

1. Gain reduction is identical for both channels. Any gain reduction that

occurs on channel 1 will also occur on channel 2 and vice-versa

2. The TIE switch overrides an individual channel's IN/OUT switch.

For example

if Ch. 1 is switched OUT but Ch. 2 and the TIE switch

are both IN, then any limiting action which occurs on Ch. 2 will also

occur

on Ch. 1 even though Ch. 1 is switched OUT. The Ch. 1 GAIN

REDUCTION meter will verify that this is true.

3. When both channels are switched

IN and the STEREO TIE switch is

IN, either channel can cause gain reduction on both channels. In other

words, whichever channel exceeds the threshold first will cause an

equal gain reduction on both channels.

4. When in the STEREO TIE mode, the attack and decay characteristics

of both channels will be determined by whichever channel actually

caused the gain reduction. If both channels simultaneously receive an

above-threshold signal, then the attack time will be determined by

the channel with the fastest ATTACK TIME setting and the release

time will be determined by the channel with the slowest RELEASE

TIME setting.

5. If you want to deliberately

make one channel a slave

to the other,

simply switch OUT the channel that is to be the slave, switch IN the

master channel, and switch IN the STEREO TIE. Q

IN CASE OF TROUBLE

NOTE: Unshielded cables, improperly wired connectors, and cable with broken

strands of wire rattling around are very common problems. Use good quality cables

with good quality, correctly wired connectors.

NO OUTPUT

Check AC Power. Is the power switch on? Check input and output

connections—are they reversed? Are you sure you have an input signal?

CONTROLS HAVE NO EFFECT

Is the LIMIT IN/OUT switch IN? Perhaps the RATIO control is set too

low to produce an audible effect or the input level is below threshold. Is the

THRESHOLD LED lighting up? If not, increase the GAIN control. Do not

expect to hear any effect when the input level to the CL-50E is below

threshold, since the unit is simply a linear amplifier at those levels.

WHEN USING HEAVY COMPRESSION, BACKGROUND NOISE

IS NOTICEABLE DURING QUIET SECTIONS OF THE PROGRAM

As defined in the section on compression, quiet program material is

effectively made louder while loud peaks are made quieter. When the

program source is thus raised in volume, its noise floor is also raised in

volume by a proportionate amount. This is not a defect in the compressor/

limiter, but an unavoidable side effect of the gain altering process. If the noise

becomes a problem, the solutions are to either clean up the program source, or

use less compression.

EXCESSIVE HUM OR NOISE

Hum is often caused by a "ground loop" between components. Try using

the suggested balanced input and output hookups if the other pieces of

equipment used in conjunction with the CL-50E have balanced inputs and

outputs. Noise can also be caused by insufficient drive levels. Make sure you

are sending a nominal 0 dBV line level signal to the unit. Q