The very first time I purchased one of these, it was a GUITAR PROCESSOR. Before then, he made do with combos and analog devices. This is, of course, stated quite publicly due to the fact that at the present time I am nothing more than a basic amateur)). However, the item should only be used in a private capacity, such as at home or for rehearsal practice. The sound is as close as it can be to "live" and tube, there is no affect of "plastic sound" or "box" (I hope some of you will understand what I'm saying), and everything sounds vibrant and flexible. Simple and easy to use. Emulations of one minus are insufficient for an amplifier. I would suggest.