The NUX PA-50 personal monitoring amplifier has a flat frequency response and is equipped with a full range 2-way speaker set. 2 independent channels each have a different EQ response. Channel 1 is improved for dynamic sound and designed to enhance low and high frequencies. Channel 2 has a flat response which does not colour the tone of the input source. Use with a processor or IR loader, such as NU-X Solid Studio to give the true sound your favourite guitar amplifier(s) without carrying the whole rig. Use the 3-band EQ to fine-tune your output for a perfect result