Top recording studios worldwide use Eventide effects on hit after hit. PitchFactor includes Eventides best pitch – changing effects from the past 39 years without compromising quality or flexibility. Plug – and – play expression pedal control of wet/dry mix or any combination of parameters. Control Program Changes and vary parameters continuously via MIDI. Supports instrument or line level inputs and outputs. Plays Well With Others; Adapts seamlessly with a wide variety of amps and other foot pedals. Easy to Upgrade; Download new software from the Internet and install via USB. 10 of Eventides signature stereo or mono pitch + delay effects: Diatonic PitchFlexTM QuadravoxTM OctaverTM HarModulatorTM CrystalsTM MicroPitch HarPeggiatorTM H910/H949 SynthonizerTMUp to 4 voices of diatonic pitch shifting and up to 1.5 seconds of stereo delay Studio Quality Sound guitar or bass compatible Built-in tuner software upgradeable via USB 2.0 Midi control via USB or MIDI in, out/thru Instant program change real – time control with 10 knobs, MIDI, or expression pedal tap tempo and MIDI clock sync 100 factory presets, unlimited through MIDI True analog bypass rugged cast metal construction Reliable metal footswitches for instant preset access Mono or Stereo operation guitar or line level inputs and outputs