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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

 balanced

10K

 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

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