Rolls RP503 - Manual

Bellari is a division of
ROLLS Corporation
5968 South 350 West
Salt Lake City, UT 84107
The Bellari RP503 is a single rack space mic preamp, compressor/limiter, and
three band equalizer designed for the professional audio and home recording
market. The unit is ideal for any recording situation, but proves most effective in
natural, pleasant signal conditioning for the digital recording medium.
FEATURES
• Warm, silky tube preamplification
• +48 Volt Phantom Power
• Smooth, natural optical compression
• Side Chain for direct access to the compressor's detector circuits
• Calibrated VU metering
• Three band EQ with sweepable mid section
• All tube gain circuitry with high-voltage plate voltages
• 1/4” and XLR inputs and outputs
SPECIFICATIONS
Input Impedance:
600 Ohms balanced
50K Ohms unbalanced (1/4")
Output Impedance: 50 OhmsTRS Balanced
Max Input Level: -15 dBV XLR 600 Ohms
+18 dBV 1/4"
Max Gain: +65 dB
Max Output Level: +22 dB
Frequency Response 20Hz - 25kHz +/-3dB
THD + Noise <0.1% typical
Noise Floor - 75 dB
Equalizer Boost/Cut: +/- 15 dB
Equalizer settings:
Low shelf: 150 Hz
High shelf: 10 kHz
Mid freqencies: 300 Hz - 5 kHz, Q = 1
Compressor settings:
Threshold: -30 dB to +20 dB
Ratio: 2:1 to 8:1
Indicators Phantom Power LED, Clip LED, Power LED
Analog VU Meter
Input/Output jacks XLR balanced
1/4" unbalanced
1/4" TRS unbal. Side Chain
Dimensions 1.75" x 6" x 19"
(90mm X 162mm X 482mm)
Weight 3.5 lbs. (1.75 Kg)
Power 120VAC (230VAC) 15VA
OUTPUT
INPUT
SIDE CHAIN
CA
UTION
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RP503
TUBE CHANNEL
• Tube Mic Preamp
• Optical Compressor
• Equalizer