Alesis PEQ-450 ユーザーズマニュアル

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basics of equalization • chapter 3   
28 
PEQ-450 Reference Manual
Description of Controls
There are five groups of knobs in vertical rows on each channel of
the PEQ-450. These are labeled BAND 1 through BAND 5. Their
function is as follows:
Gain
The 
GAIN
 
G
 knob specifies the amount of boost or cut for that band.
The range of the control is –18dB to +18dB. When the Gain is set to
0dB, that band will not affect the audio. The only exception to this is
if the 
LPF
 or 
HPF
 functions are on. These functions supercede the gain
setting on Band 1 and Band 5.
Frequency
0dB
+3dB
+6dB
+9dB
+12dB
-12dB
-9dB
-6dB
-3dB
Gain
Q
40Hz
200Hz
1kHz
10kHz 20kHz
Frequency
The 
FREQUENCY
 
F
 knob controls the frequency that will be effected
by that band. The range is 20Hz to 20kHz for each band. You can set
several bands to the same frequency, if you like.
40Hz
200Hz
1kHz
10kHz 20kHz
The Diagram above shows the effect of sweeping the frequency
control up and down.