A few years ago our pastor had a very much needed new sound system installed ... much like the one Gary describes, it consists of 4 BOSE line array columns - I have no idea how many speakers are in each, but they are longer than the ones that come with the BOSE systems some on this board use - and I haven't seen a sub woofer anywhere ... the sound is great except in the very rear of the church when the pastor, who has a booming voice, is speaking ... I'm not sure if it is because the sound is bouncing off that back wall or not ... but the solo vocalist and choir sound great ... and the $100,000 pipe organ donated by some parishioners stands on its own ...