RME Audio ADI-2 Pro, User Manual

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User’s Guide ADI-2/4 Pro SE - v 1.0
Notes
The frequency graphics give a precise overview of the filter results. Overlapping filters influence
each other. This can be used to achieve more than 12 dB gain, or to generate difficult frequency
response optimizations.
The ADI-2/4 Pro SE has an internal headroom of 24 dB. Extreme boosts with overlapping filters
could cause an internal overload. Such an overload will be visible as it is displayed by the level
meter below the EQ, as well as the channel
’s level meter. Reducing the output volume will prevent
any clipping as long as the headroom of 24 dB is not exceeded. In real-world operation that is
always the case, the ADI-2/4 Pro SE will not distort internally.
The EQ can cause distortion for the digital outputs when used on the Analog Input. Again the
l
evel meters will clearly show this error condition. Reduce the input’s sensitivity by selecting a
higher Reference Level in such a case.
If the frequency graph is shown as grey line the EQ is disa-
bled. There are two ways to change this state:

Push key EQ again to change to the page EQ Enable /
Presets, see below.

Push key I/O, select current channels, Subpage Paramet-
ric EQ, EQ Enable ON or OFF
Pushing the EQ key a second time brings up the
EQ Enable / Presets screen. In this screen the
EQ can be switched on and off, and EQ presets can be stored and loaded comfortably.
Use encoder 1 to change between the subpages
Analog Input, Line Out 1/2 and Phones Out 3/4 .
These subpages have the following entries:
EQ Enable
Default: OFF. Options are ON, OFF, L, R (L and R are only
available with Dual EQ activated).
Load B/T with Preset
The current B/T setting is always stored with the EQ Preset,
but only loaded (automatically set and activated) when this op-
tion has been set to ON. The Bode plot then shows the effect
of the B/T setting as well, and Bass and Treble controls are
added as bands BB and BT for direct control within the graph-
ical EQ screen, turning the 5-band PEQ into a 7-band one.
Preset Select
Load or store up to 22 different EQ settings. The first choice, Manual, holds the current, unsaved
EQ settings. The second choice, Temp, holds the settings of a loaded and then modified Preset.
This scheme lets the user easily change and compare three different EQ settings: the manual
one, the stored preset and the modified preset, without losing changes while listening to a different
set of EQ settings.
The last entry (21, Clear) corresponds to the factory default with all bands at 0 dB. It is not avail-
able to store a preset, but is used for resetting one by overwriting. A preset reset in this way,
resulting in an 'empty' preset, is marked with
(lin) .
The presets are independent from and not stored with Setups (see chapter 14.2). EQ Presets are
therefore always available, no matter which Setup has been loaded. The Setup does include the
current EQ setting, which on load is written into the memory slot Manual.