Keeping in theme with last week’s video on how to mic a guitar amp, today I’m reviewing the versatile amp modeling stomp box from Behringer, the V-Tone GDi21. In a nutshell this unit is a simple, affordable, and great sounding way to get a variety of classic guitar tones into your recordings or live setup all in one small blue box. Check out the video for more details as well as sound samples as I play through a lot of the settings.

The Quick Facts


  • Huge variety of amp tones in one box
  • Very easy to get a great sound
  • Affordable amp modeling for your studio
  • Can double as an overdrive pedal for your live rig
  • Can’t beat the price!


  • Some noise as you push the output gain up a bit
  • Hard to read the dials from a distance