Orban 622B User Manual

Part
A:
Installation and
Operation
INTRODUCTION
The
Orban
622A/B
are
parametric equalizers
of
high
professional
quality. The
622A
is
a
single-channel equalizer;
the 622B
is
a
dual-channel equalizer. Each
channel contains four parametric
equalization
bands.
Isolation of the
two channels in the 622B is extremely high
(greater than
-90dB,
20-20, 000Hz). Therefore,
each
channel may
be used independently without
danger of
audible crosstalk.
The 622 is equipped with rotary-type
EQ
controls providing
up to
lodB
of boost
and
better than
40dB
of cut.
The controls are non-reciprocal,
providing musically
useful
"constant-Q"
characteristics, and permitting the equalizer to
be used as a
notch filter.
The
center
frequency and bandwidth of each band are continuously
variable to enable precise
control of the audio spectrum.
Each
channel of the
622
has an
electronically-balanced
bridging input and an
unbalanced output which can be balanced by the
addition
of an optional output
transformer.
Input,
output,
and power line connections all contain
effective
RF
filtering. l2dB of gain is
available.
Aj|
potential
overload points
in
the equalizer
are monitored
by
an extremely fast "peak -stretching" overload detector, so that
peak clipping can be detected
and corrected before
it
becomes audible.
The
flexibility
offered by
the 622 makes it
a
particularly powerful tool in nearly
all
areas
of audio: sound
reinforcement, public address, recording
studio,
broadcasting, motion
picture sound, dance bars
(discos),
theater...
The 622 easily meets
the quality,
performance, and reliability
requirements
of
the
demanding professional, and is also well-suited for use in semi-pro or
audiophile
applications.
The
controls and
features
of
the 622 are fully described in this manual.
It will
familiarize
you
with the unit's
potential and enable
you
to imaginatively
use
the
622
for
your specific
installation and application.
PERFORMANCE
HIGHLIGHTS
EQ
Section
Four
bands,
each with TUNING
and
BANDWIDTH
control
True
parametric operation: non-interacting
control over all three equalization
parameters
+
l6dB, -infinity equalization range
"Constant-Q" curves
Each
band tunes over
25:
1
frequency range
"Q"
is variable between 0.29 and 3.2
Bands
are totally non-interacting
In/out switches
for each
equalizer
band

Orban 622B Specifications

General

Brand	Orban
Model	622B
Category	Stereo Equalizer
Language	English