Is that a major hassle? 15" cabinet, has plenty of room to add one. It's a 4 ohm cab now. Could I buy one and throw it in a hole I cut? Do any tweeters have builtin crossovers to ease in wiring? don't know how a 1 x 15" cab would sound without a tweet. I haven't played through the cab yet, trying to decide if I should buy it or not. Just for practice purposes really.