| "Series 2" vs "Series 3" Acoustic Image CONTRA amp?
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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? | 
