If you are using a simple 2-band EQ Bass or Passive Bass, the new EWS Bass Mid Control (BMC) may be one of the most important pedals for you. The dual potentiometer features "Frequency" and "Boost/Cut" controls allowing you to boost or cut the Mid frequencies to your desired tone. "Frequency" portion provides control of 150Hz to 3KHz frequencies, while the "Boost/Cut" portion provides up to 15dB of boost or cut. This small unit can be powered by 9V battery or 9V adapter. The EWS BMC is a great tool to spice up your mix no matter what type of music you play.