We use sound system that have hasn't proven us wrong for 8 years+...... here it is: 2 bose 402 speakers w/eq 1 crown MT1200 power amp (I bought it used via ebay..) Yamaha MX-12 mixer explanation: I also own the bose 802's.......and haven't used them since I purchased a pair of 402's...... my classical trio performs many "concert in the park" gigs throughout the summer months (up here in MA) and sound great with the 402's......I also use the 402's for a polka band that I play with (as the high-end of a 2 way system for outdoor festivals)...they are great..the 802's have dust on them. If you have the power to drive them,,,, Bose all the way,,,,, for venues up to 500 people. As musicians, WE CAN'T AFFORD TO SOUND BAD! Mike M. Allegro Chamber Players