Keyboards · Nektar
GarageBand plays the keys, but ignores most of the 1 knob and 7 buttons on the Nektar Impact GX49. KnobLink connects them: it recognises the Impact GX49 the moment you plug it in.
Also covers: Impact GX61.
GarageBand plays the Impact GX49's keys and pads, but ignores most of its knobs and faders. KnobLink connects those too: knobs move the instrument's Smart Controls, faders set track volume, transport buttons work.
No. KnobLink recognises the Nektar Impact GX49 by name when you plug it in and knows its factory settings. If you changed its settings, KnobLink asks you to move the changed controls once.
KnobLink is made for GarageBand. Logic Pro has its own controller assignments.