Recently I had the privilage to try out the relatively new Bose L1 model 2 pa system - and wow what a sound - and all the gear has shrunk and got lighter + what a look - just like something off the star ship enterprise. But worth every penny for that great spatial sound - no need for fold back speakers anymore either as the sound wraps virtually all the way round the speaker - Amazing!
Here's a free live mixing tip for all you gigging singers - Use of
reverb - generally speaking - use a smaller room reverb for faster music
and a larger one for ballads - be careful not to overdo the size of
reverb on ballads and cause feedback problems! - http://andys-backing-tracks.webs.com/