100W/150W Digital Sound Beam Column Speaker Model:DSP1501 DSP1502 ● Acoustically simulate the sound columns of different shapes, e.g. inclined, concave, convex and more complicates shapes. ●l Active sound column with inbuilt digital signal processor and digital power amplifier, so that it is no need for external power amplifier. ● Compatible with line signal input (300mV), line signal output (200mV) and broadcasting power signal input with fixed voltage (70V or 100V). ● Volume, tone and other parameters of the sound column adjustable. ● The LED array screen on the right lower of the sound column can display different parameters and messages. ● Operate from infrared remote controller. ● Compact size, easy installation and high electroacoustic sensitivity.