Behringer DR115DSP, Active 15"" 2-Way PA Speaker with DSP and Bluetooth, For live and playback applications, Class-D + Class-AB amplifier with 1400 Watt power, Equipped with: 15"" Speaker and 1.75"" compression driver, Frequency range: 45 - 19,000 Hz, Max. SPL: 136 dB, Powerful DSP functions with optimisation