So Im getting a new/used amp tommorow. Its a Carvin 4x10 cabinet, with an Acoustic 220 head. Im getting from a guy off of craigslist, are there any things that I should be aware of when I'm trying it out? And what would be some good public places where I could ask the guy to meet me at to try it out? I feel like im getting a pretty solid deal on it at 175$ for the stack.