A
NTI
-M
ODE
2.0 D
UAL
C
ORE
O
WNER
'
S
M
ANUAL
4.4
High/Lowpass filters
The Anti-Mode 2.0 Dual Core features fully customizable highpass and lowpass filters.
These filters can be used to control the pass-band of the speaker or subwoofer. For
example, with a custom lowpass, it is easy to implement a more precise digital cross-
over filter for a subwoofer. A custom highpass filter can be used to attenuate lower
frequencies and thus prevent them from reaching the main speakers.
To design a custom lowpass or highpass filter, navigate into the
Highpass/lowpass
section of the
Settings
menu. Note that you can design two independent filters by
selecting a different filter slot (use the
LEFT
/
RIGHT
arrow buttons to highlight a slot
and press the
OK
button to accept).
This allows you to design extremely steep lowpass or highpass filters, for example
duplicating a maximally steep filter results in 48 dB / octave slope.
The controls of the high/lowpass filter tool are:
✔
Frequency:
the cut-off frequency of the filter, at which point the signal is
attenuated exactly 6 dB. Activate with the
blue
-coded button, adjust with the
LEFT
/
RIGHT
arrow buttons (coarse) and
UP
/
DOWN
(fine).
✔
Slope
: the steepness of the filter (6, 12, 18, or 24 dB / octave). Cycle with the
orange
-coded button.
✔
Settings:
open the settings submenu.
Settings
submenu:
✔
Channel
: selects the filter to apply to both channels, or just left or right channel.
Use the
LEFT/RIGHT
arrow buttons to change the selection.
✔
Type
: selects the filter type: highpass or lowpass. Use the
LEFT/RIGHT
arrow
buttons to change the selection.
✔
On/off:
enables or disables the filter. Use the
LEFT/RIGHT
arrow buttons to enable
or disable.
4.5
Custom Parametric Equalizers
The Custom Parametric Equalizers (PEQs) are very versatile filter structures that can
implement a wide range of different bandstop, bandpass, highpass and lowpass filters.
All user-defined parametric EQs are organized in 16 filter slots. The first step of the
Parametric EQ tool is the filter list screen. Use the arrow buttons to highlight an
Rev. 1.0
2013-06-04
Page 16 (32)
