KPO Pointers - Most DJ's and Pro Audio guys will go with 12" or 15" speakers. The 15's will give you more bass, but the 12's typically have a better mid-range sound. Your powered speakers are the heart of your sound system so if you need help choosing the right set, call us! Don't be fooled by misleading specs. Power ratings can be very misleading if you aren't a powered speaker guru, so call for help.