Yamaha CBR15 15-Inch Passive SpeakerIdeal for live sound applications such as front of house, DJ performances, and installed setups, the CBR15 from Yamaha delivers the lowest frequency and optimized sound pressure level handling of all the CBR series of passive speakers. This 15" model features a 2. 5 compression driver, as well as a symmetrically shaped build that lets you configure multiple units in a mirror mode floor monitoring systemresulting in a larger, more defined sweet spot.