Behringer BEQ700 Bass EQ Pedal | MUSIC STORE professional
Amazon.com: 10 Band EQ Pedal, Equalizer (31.25Hz-16kHz) for Electric Guitar Bass Including 4-string 5-string 6-string 7-string Guitars : Musical Instruments
Boss GEB-7 7-Band Bass Equalizer With Level Control Knob | Full Compass Systems