Product Hardware Specifications
25, 49 or 61 note velocity sensitive piano style keyboard with assignable aftertouch
8 multi-colour large backlit velocity sensitive drum pads
8 endless encoders (infinite rotation)
9 sliders (49 & 61 note) 1 slider (25 note)
6 dedicated transport controls
Pitch bend and modulation wheels
2 octave / transpose buttons
Custom blue-backlit LCD display
6 function buttons (4 with LED indicators)
4 control switch buttons with LEDs (49 & 61 note) 3 control switch buttons with LEDs (25 note)
9 mute / solo buttons plus toggle button (49 & 61 note)
Arpeggiator with tap tempo and roll
USB socket
DC power socket
Sustain pedal 1/4” jack socket
Expression pedal 1/4” jack socket
MIDI In and MIDI Out din sockets
Kensington security slot
Software Compatibility
Ableton Live Lite 9 is included 
If you already have Ableton Live it must be version 8 or greater to work with Impulse. We recommend that you update to the latest version as previous versions of Ableton Live do not include the Impulse integration. Impulse will also work as a standard MIDI controller.
Automap DAW and plug-in control software
Works with Logic, Pro Tools, Ableton, Cubase, Reason/Record, Sonar and more
Includes editable QWERTY support for hardware controls
A library of mappings for hundreds of plug-ins is available
Automap works with VST and AU plug-ins, as well as RTAS and TDM plug-ins 
Automap with Pro-Tools does not include AAX plugin control
Power Requirements
Fully USB bus powered 
Power supply not included
Product Dimensions
Impulse 25: 525mm (20.6”) length x 332mm (13”) depth x 100mm (3.94”) height
Impulse 49: 864mm (33.3”) length x 332mm (13”) depth x 100mm (3.94”) height
Impulse 61: 1022mm (40.2”) length x 332mm (13”) depth x 100mm (3.94”) height