Korg AX-10B Modeling Floor Bass Effect Processor Modeling Signal processor Korg's REMS modeling technology 40 User and 40 Preset programs 8 Knobs for easy editing 11 types of vintage and modern bass guitar amp models 26 types of classic Bass effects Built-in Expression Pedal for real-time control Tap switch for Reverb or Delay Time setting AMP/LINE switch Auto tuner with Bypass & Mute