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2
OPERATION
PRIOR TO SWITCHING POWER ON
Set the controls and switches to the following posi-
tions before operating the model RG-2.
L, Set the dynamic expansion selector to 10.
2, Set the input level control to the center position
(5).
3, Set the tape monitor switch to OFF (released).
4, Set the processor switch to OFF (released).
5, Set the tape monitor switeh (which is related to
the 'TAPE jacks connecting the RG-2) on the
stereo amplifier to ON.
OPERATION PROCEDURE
1, Play the program source on the stereo amplifier,
and listen to the sound without the expansion
effect.
2, Depress the processor switch (ON).
3. Rotate the input level control and set it so that
the indication on the dynamie expansion
meter is brought to its widest.
For instance, when the dynamic expansion
selector is set to the '10' position,
adjust so that
the display indiestes up to 10 when a high input
signal is fod in (See Fig. 3)
4. Adjust the volume control on the stereo ampli-
fier for suitable volume,
5. Operate the dynamic expansion selector and set
it to the position (4, 7, 10, 13, 18) where the
desired expansion is obtained
6, Adjust the volume and tone controls on the
stereo amplifier for desired volume and tone,
Fig. 3
USING
A TAPE
DECK
By setting the tape monitor switch on the stereo
amplifier to ON, and the processor switeh on the
RG-2 to OFF, the tape monitor switch on the RG-
2 ean be operated in place of that on the stereo
amplifier. The signal at the RG-2 TAPE REC jacks
bypasses the processor.
'When Employing the Processor for Tape Playback
1. Depress the tape monitor switch (ON).
2, Depress the processor switch (ON),
3. Other operations are the same as deseribed in
"OPERATION".
FOR MAXIMUM
ENJOYMENT
RG-2 EFFECT ON MUSIC SOURCE
'The RG-2 increases the level variations in the music
source, High level and percussive material such 2s
jazz and rock are best played at the dynamic ex~
pansion selector settings of 10, 18, 16dB, while
delicate music such as instrumental soles and
chamber music can be given an unnatural effect if
too much expansion is used, so the 4 to L0dB sot-
tings are recommended for this type of program
Other factors such as room acoustics also affect the
choice of setting, but wits the range of sottings
provided almost all recorded material will benefit
from the unique processing available in this unit,
Changes in the ambience
'The RG-2 serves to expand the dynamic range of
the music source. Whenever there is a difference be-
tween the levels of the left-and right: channet input
signals, this difference is expanded.
Say, for instance, the difference between the left
and right levels is 24B, This is expanded to 4¢B or
BAB. This in turn translates into a change in the
ambience of the sound as heard by the listener.
With a music source arranged like that in Fig. 3, an
intoresting effect is obtained whozeby the position
of the vocalist at the center moves to the left and
right along with the fluctuations in the difference
between the left: channel (bass) snd right channel
(piano)
sf
METER INTERPRETATION
The meter indicates the instantaneous maximum
dynamie expansion amount in dB. Maximum moter
deflections are 4, 7, 10, 13, 16dB according to the
dynamic expansion selector setting. Partial mixing
of L and R channel signals causes both meters to
deflect even with only one channel input. How-
ever, the separation does not change with stereo
reproduction.
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