Yes, VC = VibroChamp. I'm lazy with my typing, since it is so bad! I was an acoustic player who had to scratch his "Joe Walsh itch". I bought many vintage & boutique amps, pedals, and guitars, foolishly thinking that would coerce me to take lessons and get better. The list would astound some. Talk about GAS. The C600 and the VC were sufficient really. So I have sold off all but my Dano Tele and the Muchxs Vibro Champ. I currently still have the C600 and 65 BFVC, but one of those is likely to be sold. I play primarily acoustic again, with a bit of electric noodling, which is the full-circle I refer to.