that sound magic...That's the GK 250ML, as stated. A beautiful sounding (my opinion, at least) solid state combo amp, with built in compression, chorus, and reverb/delay. What you hear on SIT is THE sound of the GK 250. Several of my friends back in the day had these, and I was able to play through them from time to time. I wish I could dig one up now, or get someone to make an ampsim version of one!