Yamaha DXR8 Powered Speaker Cabinet Speaker type: 8" 2-way, Bi-amp powered speaker, Bass-reflex type Output power: Dynamic:1100W (LF: 950W HF: 150W) / Continuous: 700W (LF: 600W HF: 100W) Frequency range (-10dB) : 57Hz - 20kHz Maximum output level (1m; on axis): 129dB SPL Crossover: FIR-X tuningTM (linear phase FIR filter)