Specifications

Chapter 6: Focusrite D2 51
The Cartesian Graph
The Cartesian Graph displays a visual represen-
tation of the current EQ settings. As you adjust
the parameters of any currently active filter, the
Cartesian Graph will plot the changes to the EQ
curve in real-time. If you are using D2 in stereo,
the Cartesian Graph displays the EQ curve for
the right channel in red and the left channel in
blue.
EQ Filter Controls
Each of the six different EQ filters has its own
controls and its own icon. The icons act as
three-state switches for enabling, disabling, or
bypassing the specific filter. The current state of
a filter is indicated by its color:
• White = enabled. In this state the filter is ac-
tive, audible, and using available DSP re-
sources.
• Black = disabled. In this state the filter is not
using any DSP resources and has no effect on
audio.
• Gray = bypassed. In this state the filter is not
active, but is still using available DSP re-
sources. The effect of the filter is not audible.
High-Pass Filter
The 18 dB/octave High-Pass Filter provides a ro-
tary control for adjusting the corner (cutoff) fre-
quency, variable from 20 Hz to 6.4 kHz.
Low-Shelf Filter
The Low-Shelf Filter provides two rotary con-
trols: The upper rotary control adjusts the cor-
ner frequency, variable from 33 Hz to 460 Hz.
The lower rotary control adjusts the filter’s am-
plitude gain or attenuation. Amplitude range is
±15 dB from unity.
Cartesian Graph
Option-clicking (Macintosh) or Alt-clicking
(Windows) the Cartesian Graph resets all
D2 parameters to their default settings. To
reset parameters for both channels when in
Stereo mode, Option-Shift-click (Macintosh)
or Alt-Shift-click (Windows) the Cartesian
Graph.
High-Pass Filter
Low-Shelf Filter