I had been after this one for a while. I was lucky enough to find one cheap so I grabbed it. It's a VCA tremolo with a level control. I love the Soundtank series! I miss my EM-5 and the TS-5 as well. Anyway, this thing is pure vintage goodness! It gets crazy choppy as well (main reason why I wanted it). Thinking of leaving it on top of my amp!