Using this dbx equalizer is easy. First, connect it to your audio system using the right cables. Then, plug in the correct power supply that comes with it. When adjusting the equalizer bands, just turn the knobs to get the sound you like. Make sure to place the equalizer in a dry and cool area. Keep it away from liquids and direct sunlight. For maintenance, use a soft cloth to clean the exterior regularly. If you encounter any problems, check the connections first and then contact customer service if needed.