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EQ Types Options for PEQ, LO-SHF and HI-SHF
FREQ
– EQ center frequency; the equalizer’s centered frequency can be set anywhere within the range
from 20 to 20,000Hz, in either 1Hz steps or 1/36 octave steps. The sampling rate and the frequency steps
can be selected in the System Menu.
BW
– EQ Bandwidth. The equalizer’s bandwidth ranges from 0.02 to 2.50 octaves and can be set in 0.01
octave steps for PEQ (see EQ TYPE). The Q value is automatically displayed beneath the octave value. For
LO-SHF or HI-SHF, it is either 6 or 12dB/Octave.
LEVEL
– EQ level gain. The EQ level can be set from -30.00dB to +15.00dB in 0.25dB steps.
EQ Types Options for AP-1 and AP-2
The all pass filters AP1, AP2 have two setting variables. One is a centre frequency, and the other is the
amount of phase shift at that frequency.
Use the all pass filter to compensate for driver phase mismatch where you do not want to select the
polarity reversal (180 degrees) across the entire frequency band, but only within a limited frequency band. For
example if the frequency chosen is 1000hz, and the phase chosen is 30 degrees, then from 300hz to 1000hz the
phase will change from 0 degrees to 30 degrees at 1000hz, changing back to 0 degrees at 3000hz.
FREQ
– EQ center frequency; the equalizer’s center frequency can be set anywhere within the range from
20 to 20,000Hz, in either 1Hz steps or 1/36 octave steps. The sampling rate and the frequency steps can
be selected in the System Menu.
DEG
– Set the Deg to compensate for driver phase mismatch.
Cursor
Cursor
Cursor
LEVEL:0.00dB
O1:______ EQ1
FREQ:1000Hz
O1:______ EQ1
DEG:16.5 deg
O1:______ EQ1
Cursor
FREQ:1000Hz
O1:______ EQ1
BW:0.33
OC
t
O1:______ EQ1
Cursor
