Pioneer RG-2 - Features; Broadens Dynamic Range; Design Oriented toward High S;N and Low Distortion; 5-Stage Dynamic Expansion Selector

CONTENTS
Specifications ........ Li fOpatition saceits caccrtenait vas 6
Features 2 Using A Tape Deck é 6
Rear Pane) Facilities 8 For Maximum Enjoyment ....... 6
Installation Precautions 3 RG-2Technical Outline ......... 7
Connections . 4 chematic Diagram .........++++++ Insertion
Front Panel Facilities 5
Modern recording uses three dynamic control dynamic distrotion in esch of these areas, increas
techniques which may detract from the original ing the contrast. and virtually restoring the original
dynamic range; reduction of transient peaks, over- live program, In order to obtain maximum benefit
all
compression
of
loud
levels
and
upward
mani-
from
this
unit,
please
read
the
following
instru.
pulation of soft levels. The RG-2 will correct tions carefully
FEATURES
Broadens Dynamic Range that lower frecuency instruments are also enhanced,
The dynamic range of the music source can be expanded Design Oriented toward High S/N and Low
by employing the RG-2 asasieren system adaptor unit. No Distortion
preprocessing is needed and only ordinary program sources,
such as records, FM broadcasts or tape music ate requited
‘The dynamic range 4s brcadened by upward and downs
‘expansion, resulting in a powerful and sharp rendition of
¥¢ source.This has the effect of bringing perfortners right
into the listening room, and especially pulsive sources such
as rock and soul ae given a broad new dimension.
The gain conticl amplifier adopts low-noise differentia!
transistors and low-neise ICS for a Sgnaktonoise ratio of
1004B and a total harmonic distortion of 0.05% Further
ore, the sensor section is also equipped with low-noise
transistors in order to keep the noise in the control curtent
‘down to the bare minimum.
S-Stage Dynamic Expansion Selector
‘The expansion in the dynamic range can be switehed in
3dB steps from 4B to 16¢B with this Setting selector. By
combining the upward and downward expansion, it is
possible to produce the optimum expansion in the dynamic
range and also to select the expansion according to the
Noise Reduction Effect ruse soures and your individual taste,
A
noise
reduction
effect
is
also
included
which
reduces
namic
Expansion
with
Fluroscan
Display
underiying
source
noise.
Tape hiss, motor
rumble
and
other
By
mie
soe
ee
background
noisos
are
reduced
by
the
circuit
properties
of
this
unit,
so
that
low
noise,
exciting
stereo
sound
ean
been.
joyed.
Faithful Reproduction Funct
The sensor section which produces the control signal is
Provided with an energy cistibuticn filter, to ersure that
Preserves Natural Impression
‘Atiack and release characteristics of the audio signal are
preserved by a fast and slow response (mixed) double ac:
ton control signal that prevents unnatural impressions in
the reproduced sound.
Fluroscan is incorporated for the meter which indicates
the degree of the dynamic range's expansion. This new kind
of display accurately tracks the processing action and it
allows readout of the expansion at exch instantin dB,
Smart, Slimly Designed Styling
The processor has been slimly designed with the dynam
ic expansion moter, which employs a Fluroscan display, in
the center for a clean, fresh look. The height dimension of
the front panel conforms to the F1A* standard 2U size
format. Using the optional rack mount adaptors (JA-R1O4),
the processor can be installed in a rack confarming to ELA,
the expansion function is not rigged by noise components,
However, expansion is not limited to instruments, whose
fundamental frequency is close to the center frequency of
the energy distribution filter, since all musical instruments
Produce harmonics which are strongest when the insiru- (Ye PrOtser
ment Is played hard. Hence these harmonics activate the ene
semsing
citcuit
and
control
the
degree
of
expansion,
so
The
rack
mount
adaptors
are
equipped
withS/0
mode!
6s
2
“EIA:
Electronic
Industries
Association