Ashly LIMITER/COMPRESSORS CL-50E Panduan Pemilik - Halaman 16
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Halaman Cetak
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