The DZR315 is a 3-way bi-amped powered speaker and is the most powerful model in the DZR Series producing a maximum 143 dB SPL with supreme clarity. With its best-in-class SPL performance, sophisticated DSP processing, and unrivaled low-frequency sound reproduction—the DZR315 produces a truly professional sound, delivered with a level of power that belies its compact, lightweight design. Ideal for use in a front of house main PA, it also includes integrated M10 rigging points for suspended applications.Advanced FIR-X Tuning96kHz DSP processors help focus the considerable power output of the DZR315 into truly high-resolution sound with super-low latency. Yamaha's Advanced FIR-X tuning improves their FIR-X tuning technology which utilizes linear phase FIR filters for the crossover network.