The present invention a parametric equalizer and a method for correcting for room mode problems. The inventive device is an analog based, parametric notch filtration system with at least two-channels. The inventive equalizer has sufficient bands, bandwidth, attenuation, and flexibility to accurately address room mode problems. The inventive system allows for continuous fine adjustment of attenuation and bandwidth. The method involves measuring, evaluating, and calculating what variables need to be used to correct the room mode issue for a particular room and then correcting the identified variables.