User`s manual

55
MODE switch (11)
Engage this switch to insert the Low Cut Filter to signal path, and the LED (green) (12) will illuminate. When this
switch is in bypass mode, the Low Cut Filter will be bypassed.
3.1.3 LOW CUT FILTER
FREQUENCY control (13)
Through this control, you can select the frequency that you want to cut off from 15Hz to 360Hz.
INVERTER switch (14)
Engage this switch to reverse the audio signal's phase by 180 . In this case, it may alter the audio phase
to compensate for phase cancellation. The LED (15) will show you when the function is active or not.
3.1.4 NOTCH
The apparatus provides with NOTCH 1 and NOTCH 2. You can suppress the feedback via each variation
of separated 2 Notch filter frequencies.
MODE switch (16)
Through pressing this switch you will insert the Notch filter to signal path, and the LED (green) (17) will ill-
uminate. When this switch is in bypass mode, the Notch filter will be bypassed.
FILTER GAIN controls (5)
These controls will boost or attenuate (either 6dB or 12dB) the select frequencies. When all slider potentio-
meters are set in center position, the frequency response is flat (no boost and attenuate).
RANGE switch (6)
This switch is used to choose the gain range of the filter potentiometer either +6dB or +12dB. Up for +6dB, down
for +12dB.
HI-PASS switch (7)
To press this switch will cut the low frequencies at 40Hz (12dB per octave), and the LED (green) (8) illuminates.
LOW-PASS switch (9)
To press this switch will cut the high frequencies at 16kHz (12dB per octave), and the LED (green) (10)
illuminates.
360
90
25 270
15
INVERTER
FREQUENCY (Hz)
LOW CUT FILTER
Bypass
ON
MODE
(11)(12)(13)
(15)
(14)
DEPTH
DEPTH
0
20
NOTCH1
10
1
0 20
NOTCH2
FREQUENCY (Hz)FREQUENCY (Hz)
dB
10
1
2K
200
2K
4K
400
400
40
dB
Bypass
ON
MODE
20K
MODE
Bypass
ON
(16)
(17)
(18)(20)
(19)
(21)