Technical Design Features - Rockford Fosgate OEQ2 HIGH Installation & Operation Manual

T
ECHNICAL
High-Q Filters
Hi-Q filters are utilized for adjusting narrow frequency bands in an
equalizer. Filter "Q" or Quality Factor is a measure of the "narrow-
ness" of the filter response. Using Low-Q (wide) filters in an equalizer
allows adjustments made on one control to strongly effect neighbor-
ing frequencies during boost or cut. Hi-Q filters avoid problems like
adjacent band overlap which minimize the time needed to remove
frequency response errors.
THE RESULT: Avoids adjacent band overlap through precise filtering.
Frequency Warp
The Frequency Warp controls shift the center frequency of each band
higher or lower in frequency (up to 1/2 octave). This enables the
equalizer to pinpoint "dips" and "peaks" in the response curve. The
frequency warp is useful when using an RTA (Real Time Analyzer) to
find and correct problems located between the equalizer's center
frequencies.
THE RESULT: Easier to equalize response errors by pinpointing
problem frequencies.
Balanced Line Inputs
Using the BLT (Balanced Line Transmitter) provides the last word in
achievable rejection of noise induced in the cable between the
source and the signal processor. The differential input circuitry used
in the balanced input system rejects whatever signals are common to
both of the shielded, twisted pair conductors. Balanced line is
universally used in concert installations where the stage and mixing
consoles are hundreds of feet apart. Long signal cables and electri-
cally-noisy environments make signal integrity and noise rejection
an extremely difficult challenge.
THE RESULT: Quiet transmission of audio from source to signal
processor.
D
ESIGN
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F
EATURES