Preset/programmable 18-Bit signal processor

The MicroVerb4 is designed to provide a wide variety of great-sounding, easy-to-use effects for small studios, engineers and performing musicians. The key to MicroVerb 4's power is in its simplicity. It offers 200 programs that include everything from high-quality reverb, delay, chorus and flange to exciting multieffects and more. To customize your programs, two front panel knobs allow for quick, easy, user-storable edits, or use its MIDI inputs for control over program changes and modulation. You can then save your edited programs in the 100-space user program bank. Even though it's affordable and easy to use, the MicroVerb 4 offers the superb audio quality that you should expect from every Alesis processor.


  • 200 Programs chock-full of professional effects
  • 100 User program banks so you can customize to your liking
  • Perfect for studios of all sizes, and musicians of all kinds
  • Up to three simultaneous effects for rich multi-effects
  • Pro-grade 18-bit A-to-D and D-to-A processing ensures quality
  • MIDI Input lets you change programs instantly from another source


  • Presets (Factory/User):
    • 100/100

  • Digital Effects (reverb, delay, chorus, etc.):
    • Rvrb; chrs; dly; flng; rtry; ptch

  • Simultaneous Effects:
    • 3

  • Programmable Wet/Dry/Mix:
    • Yes

  • Compare/Bypass
    • N/Y

  • Maximum Delay Time:
    • 1,300 ms

  • Maximum Pitch Shift Range (octaves):
    • ±1 octave

  • MIDI Real-Time Control:
    • Yes

  • Simultaneous MIDI Controls:
    • 2

  • Discrete Programming Channels:
    • 2

    • 18-bit

  • Overload Warning:
    • 4-seg LED

  • Inputs:
    • (2) 1/4"

  • Outputs:
    • (2) 1/4"

Documents & Images

Docs and Downloads

  • MicroVerb4 - Reference ManualOpen
  • MicroVerb4 - Program ChartOpen