Yeah but large sound in a large room is a consideration, and you not going to exactly pull that off when mains are underpowered in the first place, and your sub has a 10inch speaker. Yet even with the powered speakers...my advice still stands. I had the feeling he wanted to honestly upgrade his PA...not polish a turd. Given the factor of instruments of a "full band" are dependent completely on the PA ( with no offstage sound ), its insulting to those that would pay to hear a show done on a system thats almost not passable for a reading at a coffee shop ( or just vocals for a band ).

Sorry but I question the logic of a 10inch sub, when the mains are 10inch ":P A single 10inch wouldn't fly all that well if only a bass player was going through it AND ran through a PA, so how its solid reinforcement for an entire emulated band is beyond me. If you want a sub for live go with 15inch. Just don't think a 10inch sub thats weaker then the mains is going to bring you the frequency response and the projection one desires for a large live show.

Perhaps if you were the keyboard player in a full band, you could get away with the 10inch sub projecting some off stage sound as you have a solid PA and other band members that are amped as well. Just this isnt the case...your dealing with a keyboard player that is the full band...consideration consideration consideration.

He wants bigger sound in large rooms, I gave tons of options to do just that...all more viable then a underpowered contradiction 10inch sub.