Hello Greg, Indeed it depends on the budget, the instruments to be amplified as Lisa Callas says... As far as I am concerned, I use a small Yamaha Stagepass 400 i + in return an amplified Machie Freeplay 150w speaker, I place the return behind me so that it is turned towards the track and that goes very well.I play 3/4 of the time alone (midi accordion + Sd 40 + computer for some pieces on midi or mp3 files.to give you an idea, I still made a presta last Saturday or there were 170 people in a room of 250 people, the sound system was still far from being used at full power.good day to you.amicalement.Dany 14