RP583
Studio Tube Compressor/Limiter
OUTPUT LEVEL
THRESHOLD
RATIO
ATTACK
RELEASE
4:1
5:1
S
t
u
d
i
o
D
u
a
l
T
u
b
e
C
o
m
ACTIVE
0
METER
CHANNEL
ONE
CHANNEL ONE
CHANNEL TWO
3
1
3
1
0
0
+4 REF
OUTPUT
2:1
4:1
OO:1
5:1
-20
dB +20
.5
ms 100
-
OO dB +22
.1
Sec
2
V
U
V
U
GAIN
REDUCTION
ACTIVE
STEREO
LINK
0
CHANNEL
TWO
METER
RP583
2:1
OO:1
-20
dB +20
.5
ms 100
-
OO dB +22
.1
Sec
2
SERIAL NUMBER
583-
MODEL RP583
CAUTION
120 VAC
RISK OF ELECTRIC SHOCK
DO NOT OPEN
50/60 Hz 15 VA
OUTPUT
INPUT
OUTPUT
INPUT
WARNING: DO NOT EXPOSE THIS EQUIPMENT TO RAIN
OR MOISTURE.
SIDE CHAIN
SIDE CHAIN
MADE IN U.S.A.
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK DO NOT
NOT REMOVE BACK. NO USER SERVICABLE PARTS INSIDE. REFER
SERVICING TO QUALIFIED SERVICE PERSONNEL.
BAL
UNBAL
INPUT
OUTPUT
UNBAL
BAL
BAL
UNBAL
INPUT
OUTPUT
UNBAL
BAL
RISQUE DE CHOC - NE PAS ENLEVER
C H A N N E L O N E
C H A N N E L T W O
The RP583 is a clean, delightfully warm sounding
compressor/limiter designed for a variety of uses. It
can lightly compress a vocal track, or an overall
program mix, or it can act as a ceiling for the audio
allowing only a designated level of signal pass. All
this is accomplished via optical isolated gain reduc-
tion and tube circuits to maintain a pristine full-
bodied sound.The RP583 has all the necessary
features like analog metering, variable threshold,
ratio, attack and release times, and a stereo link
switch which combines the channels and makes
Channel Two the master.
harshness and brittle sound created by the recording
medium.Tube based compressors have the added benefit
of a natural, even harmonic compression which adds a
smooth and warm characteristic to the sound.
The Bellari RP583 provides all the compression param-
eters necessary for complete control over the dynamic
process, and it does it all with new and innovative tube
circuit technology.
SPECIFICATIONS
Frequency Response
Input Impedance
20 Hz - 40 kHz
10KΩ balanced
1MΩ unbalanced
<0.1% typical
THD + Noise
S/N Ratio
FEATURES:
90 dB
• All tube gain circuitry with proper high-voltage plate
voltages
• Solid state input and output buffering only
• 1/4” and XLR inputs and outputs
• Calibrated, accurate meters
• Smooth, lively tube sound
Indicators
2: Active LEDs
2: Analog Meters
XLR balanced
Input/Output jacks
1/4" unbalanced
1/4" unbalanced
3.5" x 6" x 19"
Side Chain:
Dimensions
(89mm X 162mm X 482mm)
7.5 lbs. (3.4 Kg)
120VAC (230VAC) 15VA
Weight
Power
• Side Chain for direct access to detector circuits
WHY A TUBE COMPRESSOR / LIMITER?
With the recent explosion of the digital recording
world, tube based preamps and signal processors
have become popular to overcome the inherent
250V
250V
Output
Buffer
OUTPUT
LEVEL
2
INPUT
2
Photocell
THRESHOLD
RATIO
ATTACK
OUTPUT
Input
Buffer
RELEASE
ACTIVE
SWITCH
GAIN RED.
3
0
5
10
3
20
6
METER
dB
OUTPUT
LEVEL
SIDE CHAIN
OUT
Bellari is a division of
ROLLS Corporation
5143 South Main Street
Salt Lake City, UT 84107
+250
+12
-12
Power Supply
SIDE CHAIN
IN
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