12 Nektar Impact LX25 User Guide www.nektartech.com
Keyboard, Octave and Transpose
The Impact LX25 features as 25note keyboard. Each key is velocity sensitive so you can play expressively with the
instrument. There are 5 different velocity curves for the keyboard so you can chose a less or more dynamic curve to suit your
playing style. In addition, there are 3 fixed velocity settings.
We recommend you spend a little time playing with the default velocity curve and then determine if you need more or less
sensitivity. You can learn more about velocity curves and how to select them on page 23.
Octave Shift
To the left of the keyboard you find the Octave and Transpose shift buttons.
With each press the left Octave button will shift the keyboard down one
octave.
The right Octave button will similarly shift the keyboard up 1 octave at a time,
when pressed.
The maximum you can shift the keyboard is 4 octaves down and 5 octaves up,
covering the entire MIDI keyboard range of 127 notes.
Program, MIDI Channel and Preset Control with
the Octave Buttons
The Octave buttons can also be used to send out MIDI program messages, change
the Global MIDI channel or select the Impact LX25’s control presets. To change the
buttons function:
Press the two Octave buttons simultaneously.
The display will now show the current assignment abbreviation for a little over 1 second.
Press the Octave up or down button to step through the options.
Below is the list of the functions that the Octave buttons can be assigned to control. The Display column shows the text
abbreviation for each function as they appear on the Impact LX display. The function remains assigned to the buttons until
another function is selected. After power cycling the default function is selected.
Transpose, Program, MIDI Channel and Preset Control with the Transpose
Buttons
The Transpose buttons work in an similar way to the Octave buttons with the following function options:
Display Function Value range
trA Transpose the keyboard up or down -/+ 12 semi tones
PrG Sends out MIDI program change messages 0-127
GCh Change the Global MIDI Channel 1 to 16
PrE Select any of the 5 control presets 1 to 5
Display Function Value range
Oct Shift Octave up/down -3 / +4
PrG Sends out MIDI program change messages 0-127
GCh Change the Global MIDI Channel 1 to 16
PrE Select any of the 5 control presets 1 to 5
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