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ULTRA-Q PRO PEQ2200
1. INTRODUCTION
With the BEHRINGER ULTRA-Q PRO you have purchased an extremely musical and flexible parametric
equalizer. Our ULTRA-Q range of devices has been a hit ever since we introduced our first model about 5 years
ago. This high-end equalizer is based on many years of experience and findings in filter technology and is used
throughout the world in renowned studios, sound reinforcement systems as well as in broadcast and television
studios. Improving the legendary ULTRA-Q even further was a real challenge, and we are proud of our success.
The BEHRINGER ULTRA-Q PRO meets highest and no-compromise requirements in terms of operation,
sound, specifications and workmanship.
Future-oriented BEHRINGER technology
Compared to its predecessor models, the ULTRA-Q PRO not only has additional features, but also comes with
dramatically enhanced audio qualities. For example, it uses a refined filter concept and select components.
The heart of the ULTRA-Q PRO is an extremely low-noise filter circuit based on our well-known state-variable
filters that produce a highly transparent sound. In combination with the constant Q principle, the operational
amplifiers 4580 and a sophisticated circuit topology, the ULTRA-Q PRO yields excellent noise and distortion
properties!
State-of-the-art production processes
For the first time ever, the ULTRA-Q PRO is now manufactured with SMD components (Surface Mount Device).
Using these sub-miniature components known from aeronautics does not only ensure extreme packing
densities, but also improves the ULTRA-Q PROs reliability.
Features of the BEHRINGER ULTRA-Q PRO
Parametric equalizers represent the most advanced form of equalization systems. Basically, the user has
control over the three parameters that define the so-called Gaussian equalization curve: bandwidth, frequency
and amplitude boost/cut. Unlike graphic equalizers which provide a series of adjacent frequency bands to
approach a specific frequency, parametric equalizers allow for selecting a specific frequency directly. They can
be used to realize complex frequency curves with highest precision. Although the acoustic results of specific
equalizer settings cannot be predicted as easily as on graphic equalizers, parametric EQs are professional
audio tools of highest quality. It will certainly pay to invest some time to study their functioning principle and get
a feel for the way in which they can be used to modify the program material.
The BEHRINGER ULTRA-Q PRO gives you a combination of all technical properties both of parametric
equalizers and of narrow-band notch filters. With its excellent audio quality and outstanding specifications it is
simply better than any conventional equalizer. The ULTRA-Q PRO can be used to make up for frequency
response deficiencies and to creatively process any audio material, thus giving you undreamed-of equalization
flexibility. It is a highly efficient and all-purpose tool both in creative audio processing in broadcast and televi-
sion studios, in video post-production and on stage. Each of its five bands can be freely adjusted in quality:
from extremely narrow to broad-band. The ULTRA-Q PRO is superior to graphic equalizers in all respects.
It also has two additional filters which enable you to adapt the entire frequency response to meet your specific
application. These low and high-cut filters have a slope of 12 dB/oct. and can be varied in a wide frequency
range. Practice has shown how important this feature is, as most acoustic problems are encountered in the
extreme low and high frequency ranges. Typical frequency response, hum or feedback problems must be
handled differently. The additional low and high-cut filters allow for a broad-band correction of the frequency
curve, while the parametric filters can be used to process narrow frequency bands (mains hum, feedback,
etc.).
The Constant-Q principle
One of the most important features any graphic or parametric equalizer has to offer is the independent control
of the various filter parameters. The special state-variable filters of the ULTRA-Q PRO use the so-called
Constant Q principle which prevents the parameters frequency, bandwidth and amplitude from influencing
each other. In the same way, the mutual influence of the individual frequency bands is avoided, which is a
fundamental requirement as it allows for clearly defined and repeatable filter settings.
The concept of parallel filters
Unlike conventional parametric equalizers the ULTRA-Q PRO features a parallel filter configuration, which
offers a decisive advantage over series-type configurations: with parallel filters it is possible to reduce to a
minimum the phase shifts and delays usually associated with filters.
1. INTRODUCTION
