Product Information: The DBR15 achieves best-in-class SPL of up to132dB and delivers the lowest frequency in its lineup. The DBR15 delivers outstanding performance for the main front-of-house sound for the live performance or DJ events that require highly prominent low and more power. Using the latest DSP, Yamaha applied their proprietary FIR-X tuning to optimize the sound and protection algorithms of the DBR15, giving you plenty of muscle, despite this active speaker's rather diminutive size. Product Features: Speaker type: 2-way, Bi-amp powered speaker, Bass-reflex type Frequency range: (-10dB) 50Hz 20kHz Components: Diameter:15" cone, Voice Coil:2.5", Magnet: Ferrite Maximum output level (1m; on axis): 132dB SPL FIR-X tuning delivers excellent sound quality with high resolution and a smooth frequency response D-Contour optimizes the DBR15 for main speaker or floor monitor use Onboard mixer lets you select either a direct output or a mixed output Comprehensive inputs for mixer, musical instrument, or media players Amplifier and power supply design provides powerful output from a compact speaker DSP-controlled protection functionality promotes optimum reliability For more information and specifications, please refer to the manufacturer's website