RP562 dual tube exciter

The Bellari RP562 is a single rack space sonic exciter, designed for the professional audio/ sound studio applications. The unit is ideal for any recording situation but proves most effective in natural, pleasant signal conditioning for the digital recording medium.

The RP562 is arguable the best sonic enhancer in the world. It's sound is smooth and brilliant. The built in sub-woofer driver is great. The RP562 has many movie credits to it's history.

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 reproduce iis 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 compression. This makes a more realistic and pleasing sound. Also because of the all class “A” design, there is enhanced second harmonic content, making the RP562 even more smooth and musical. Class "A" circuits also eliminate time constants which cause unwanted "breathing" 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.