Rolls Bellari RP562 - Manual

RP562
Stereo Tube Sonic Exciter
Bellari is a division of
ROLLS Corporation
5143 South Main Street
Salt Lake City, UT 84107
The RP562 Stereo Tube Sonic Exciter is a two
channel frequency compensation device designed to
add life and animation to your sound.
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
• Adjustable 18 dB/Octave Subwoofer filter
• Calibrated analog meters - indicate process levels
• Internal Power Supply
• Smooth, lively tube sound
• Automatic Sound Separation
• Precise control over low frequencies (bottom)
• Restores the signal’s clarity and definition which
were lost in previous electronic devices
WHAT IS A SONIC EXCITER, AND WHY USE
TUBES?
The frequency range that a human ear can detect is
roughly 20Hz to 20kHz. However, the frequency
response a normal speaker can effectively repro-
duce is much, much less. Additionally, speakers add
distortion and phase changes that make the sound
different from that of the original material.
A sonic exciter restores clarity and presence to the
processed signal by correcting phase changes and
harmonic structure differences. In other words, it
puts the components of the sound back where they
belong.
Using a vacuum tube circuit in this configuration not
only restores the clarity lost in previous processes, it
adds warmth and a slightly compressed attribute to
the program material. This addition to the sonic
excitement process makes the final sound even
larger, cleaner, and clearer.
All of this magic is done by the use of all-pass filtering,
frequency compensated gain adjustment, and frequency
compensated domain delay. What this means to you is
the elements of your sound are fanned out like a deck of
cards, making each sound more audible and distinct,
reducing the need for high volume and radical equalizer
adjustment.
And there's more. Because of the unique tube design,
the RP562 also has the benefit of natural tube compres-
sion. This makes a more realistic and pleasing sound.
Also because of the all class “A” design, there is en-
hanced second harmonic content, making the RP562
even more smooth and musical. Class "A" circuits also
eliminate time constants which cause unwanted "breath-
ing" and "pumping" effects.
The RP562 performs all the necessary functions of
psychoacoustic enhancement, but with the addition of
tube circuits, the unit becomes a must for any musician,
studio owner, or sound technician.
SPECIFICATIONS
Frequency Response
20 Hz - 40 kHz
Input Impedance 10K
Ω
balanced
10K
Ω
unbalanced
THD + Noise <0.7% typical
Noise Floor -90 dB
Indicators Power LED
Active LED
2: 5-segment LED level meters
Sub Clip LED
Input/Output jacks XLR balanced
1/4" unbalanced
Dimensions 1.75" x 6" x 19"
(89mm X 162mm X 482mm)
Weight 6 lbs. (2.72 Kg)
Power 120VAC (230VAC) 15VA
20 10 6 3 1 0 2 4 VU
RIGHT LEVEL LEFT LEVEL
20 10 6 3 1 0 2 4 VU
ACTIVE
-OO +20
SUB FREQUENCY
35 Hz 200
SUB
CLIP
SUB LEVEL BOTTOM DEFINITION
0 10 0 10
50
100
175
Stereo Tube Sonic Exciter
RP562
SUB
OUTPUT
RIGHT
INPUT LEFT
INPUT
RIGHT
INPUT LEFT
INPUT
RIGHT
OUTPUT
LEFT
OUTPUT
RIGHT
OUTPUT
LEFT
OUTPUT WARNING: DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE .
120 VAC
50/60 Hz 15 VA
MODEL RP562
MADE IN U.S.A.
SERIAL NUMBER
562-
RISQUE DE CHOC - NE PAS ENLEVER