RP533
Studio Tube Multi-Processor
Bellari is a division of
ROLLS Corporation
5143 South Main Street
Salt Lake City, UT 84107
The Bellari RP533 is a versatile studio tool for signal
amplification, compression and spectral enhance-
ment - all through the use of innovative tube circuitry.
The unit features our highly acclaimed mic preamp
circuits for pristine preamplification. The compressor/
limiter section contains new, carefully designed
dynamic gain reduction circuitry for subtle, natural
compression. Finally, the sonic exciter section of the
RP533 restores material clarity and adds distinction
and character to the final signal. The meter can be
switched in the circuit path to show the input level,
output level, or compressor gain reduction.
FEATURES:
• Warm, silky tube preamplification
• Smooth, natural compression
• Sonic Exciter, frequency enhancement
• All tube gain circuitry with proper high-voltage plate
voltages
• Transformer balanced input
• 1/4” and XLR inputs and outputs
• Calibrated metering - switchable in the circuit path
• +48 Volt Phantom Power
• Side Chain for direct access to the compressor's
detector circuits
SPECIFICATIONS
Frequency Response 20Hz - 40kHz +/-3dB
Input Impedance 600 Ω balanced
1M Ω unbalanced
THD + Noise <0.1% typical
Noise Floor -90 dB
Indicators Phantom Power LED
Analog Meter
Input/Output jacks XLR balanced
1/4" unbalanced
1/4" unbal. Side Chain
Dimensions 3" x 6" x 19"
(180 X 162 X 482 mm)
Weight 7.5 lbs. (3.4 Kg)
Power 120VAC (230VAC) 15VA
PHAN
PWR
GAIN
THRESHOLD
RATIO
ATTACK
RELEASE
OUTPUT
LEVEL
BOTTOM
DEFINITION
METER
+20 dB +40
RP533
-17 dB +14
.5 ms 100
.1 Sec 2
2:1 OO :1
0 10
0 10
- OO +14
COMP EXCIT
S tu d io T u be M u lti-P rocessor
+4 REF
OUT.
GAIN
RED.
PREAMP
COMPRESSOR/LIMITER
EXCITER
dB
0
VU
31
0
120 VAC
50/60 Hz 15 VA
30dB
PAD
INPUT
OUT
IN
SIDE CHAIN
OUTPUT
CAUTION
WARNING:
DO NOT EXPOSE THIS EQUIPMENT TO RAIN
OR MOISTURE.
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
RISK OF ELECTRIC SHOCK
DO NOT OPEN
MADE IN U.S.A.
MODEL RP533
SERIAL NUMBER
533-
NORM
PAD
NRTL /C
PHASE
REVERSE
NORM
REVERSE
THRESHOLD
RATIO
ATTACK
RELEASE
OUTPUT
LEVEL
INPUT
OUTPUT
METER
SIDE CHAIN
IN
SIDE CHAIN
OUT
250V250V
GAIN RED.
OUTPUT
LEVEL
2
2
20
10
5
3
0
3
6
dB
+48 VOLT
PHANTOM POWER
PHASE
REVERSE
250V
GAIN
Photocell
COMPRESSOR
ACTIVE
250V
SONIC EXCIT.
ACTIVE
Phase
Correction
Power Supply
+12
-12
+250
+48
Output
Buffer
30dB PAD