Rolls Bellari RP583 Specifications

OUTPUT LEVEL
ACTIVE
CHANNEL 0
ONE
- O O dB +22
ACTIVE
0
CHANNEL
TWO
- O O dB +22
MODEL RP583
CAUTION
120 VAC
RISK OF ELECTRIC SHOCK
50/60 Hz 15 VA
DO NOT OPEN
WARNING:
DO NOT EXPOSE THIS EQUIPMENT TO RAIN
OR MOISTURE.
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.
RISQUE DE CHOC - NE PAS ENLEVER
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.
FEATURES:
• 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
• 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
Bellari is a division of
ROLLS Corporation
5143 South Main Street
Salt Lake City, UT 84107
Studio Tube Compressor/Limiter
THRESHOLD RATIO ATTACK
4:1 5:1
-20 dB +20 2:1 O O :1 .5 ms 100
4:1 5:1
-20 dB +20 2:1 O O :1 .5 ms 100
SERIAL NUMBER
583-
OUTPUT
BAL
RELEASE
METER
CHANNEL ONE
+4 REF
.1 Sec 2
OUTPUT
GAIN
REDUCTION
STEREO
LINK METER
.1 Sec 2
INPUT
SIDE CHAIN
UNBAL INPUT OUTPUT
UNBAL BAL
C H A N N E L T W O
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
THD + Noise
S/N Ratio
Indicators
Input/Output jacks
Side Chain:
Dimensions
Weight
Power
250V
INPUT
2
Photocell
Input
Buffer
5
10
20
+250
+12
Power Supply
-12
RP583
CHANNEL TWO
3 1 0 3 1 0
V U V U
RP583
OUTPUT
SIDE CHAIN
BAL UNBAL INPUT OUTPUT UNBAL
C H A N N E L O N E
20 Hz - 40 kHz
10K balanced
1M unbalanced
<0.1% typical
90 dB
2: Active LEDs
2: Analog Meters
XLR balanced
1/4" unbalanced
1/4" unbalanced
3.5" x 6" x 19"
(89mm X 162mm X 482mm)
7.5 lbs. (3.4 Kg)
120VAC (230VAC) 15VA
250V
OUTPUT
LEVEL
THRESHOLD
RATIO
ATTACK
RELEASE
ACTIVE
SWITCH
GAIN RED.
3
0
3
6
dB
METER
OUTPUT
LEVEL
INPUT
BAL
Output
Buffer
2
OUTPUT
SIDE CHAIN
OUT
SIDE CHAIN
IN