The MX88 features a Graded Hammer Standard (GHS) weighted action. GHS weighted action has a heavier response in the low keys and a lighter response in the high keys. This provides realistic acoustic piano
This updated second edition of iRig Keys includes many new features: SampleTank 4 SE for Mac and Windows users, stand-alone operation with MIDI input/output, a new headphone out for use with newer iPhones,