Using a pair of the B210Ds with a B1200D sub for digital model and synth sources including Roland GR-55 Guitar Synth, Yamaha S-08 Keyboard and an M-Audio controller with iPad running Garageband and other apps via a Boss BX-8 mixer for mostly classic and prog rock. Acoustic guitars sound airy and open, crunchy and distorted guitars are creamy when EQ'd right or searing metallic if you want, and orchestras and pipe organs are HUGE. Integrated handle and light weight Class D amp technology make carrying and mounting on poles effortless. Tried one B210D alone, and the range was more than adequate for typical guitar and vocal to fill a 30-50 person coffee house. All three together is good for parties or clubs up to about 100 people. For bigger venues, can be used as killer stereo monitor while feeding a larger FOH system. These are not concert level, but leaves people the option to have a conversation inside at the back of the room. A second sub and /or stepping up to B212Ds would get you to the next level, if needed. Other brands' gear will get you 20% better sound, but cost you 2 to 3 times as much. Great value. Plus, creating an account with Sam Ash got me 20% off the already low price!