Hi, I've just found a "series 2" AI Contra amp in good condition for sale where I live. It's 6 years old and half the price of a new "series 3" AI amp. I'll try it soon.
What are the differences between the two series? Are they important? Is it the sound or something else that is different?
What are the differences between the two series? Are they important? Is it the sound or something else that is different?