IQ-PIP-USP2/CN
Page 30
IQ-PIP-USP2/CN Reference Manual
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Frequency:
Sets the center
frequency of the filter. The range
is 20 Hz to 20 kHz.
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Q:
Sets the width, slope and gain
of the filter. The range is 0.1 to 34.
The lower the Q, the wider the
filter, the lower the gain and the
better the transient response
and visa versa. Gain examples:
A Q of 2 will result in 6 dB of gain
at the center frequency and a Q
of 4 will result in 12 dB of gain.
7.6.6 Low-Pass Shelving
Equalization Filter
Description: This filter boosts or cuts
low frequencies by the specified
amount of gain. When used to cut
rather than boost, the filter acts like
a high-pass filter rather than a low-
pass filter. It has a fixed 1st-order
slope (6 dB/octave).
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Passband Gain:
Sets the
amount of boost or cut for the
filter. The range is +12 dB to –24
dB.
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Frequency:
Sets the –3 dB
corner frequency of the filter. The
range is 20 Hz to 20 kHz.
7.6.7 High-Pass Shelving
Equalization Filter
Description: This filter boosts or cuts
high frequencies by the specified
amount of gain. When used to cut
rather than boost, the filter acts like
a low-pass rather than a high-pass
filter. It has a fixed 1st-order slope (6
dB/octave). It is commonly used to
compensate for the natural high-
frequency roll-off of constant direc-
tivity horns.
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Passband Gain:
Sets the
amount of boost or cut for the
filter. The range is +12 dB to –24
dB.
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Frequency:
Sets the +3 dB
corner frequency of the filter. The
range is 20 Hz to 20 kHz.
7.7 Signal Delay
Signal delay can be set for each
channel. The delay for each channel
can be set using “Coarse” or “Fine”
adjustment controls:
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“Coarse” Delay:
Sets the
amount of signal delay. The
range is 0 milliseconds to 500
milliseconds in 1 millisecond
steps.
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“Fine” Delay:
Sets the amount of
signal delay. The range is 0.6250
milliseconds to 100 milliseconds
in 20.83 millisecond steps. (The
minimum delay of 0.6250
milliseconds is inherent in the
DSP system design.)
The net delay through the IQ-PIP-
USP2/CN is the sum of the coarse
and fine delay settings. Use of both
controls provides a means for
greater delay control. For example,
the Coarse Delay control can be
adjusted to provide cabinet-to-cabi-
net alignment, while the Fine Delay
control can provide alignment within
a cluster or cabinet.
7.8 Peak Voltage Limiter
This limits the peak voltage output of
the amplifier. There are four param-
eters which control this limiter.
