Tone, tone, tone, and more tone. That is what guitar players strive for, the perfect, and somewhat elusive killer tone. Well, the MXR Custom Badass Modified Overdrive has come to the rescue. It is exactly what its name implies a classic overdrive circuit with custom modifications with improved performance and versatility. besides the typical volume, tone and gain controls the Custom Badass Modified OD adds a 100Hz boost/cut knob and a Bump switch that engages an alternate voicing EQ that boost the low and mid frequencies. The MXR Custom Badass Modified Overdrive works great with slightly overdriving a clean amp, or sending an overdriven amp over the edge!