The L.R. Baggs - Align Equalizer Pedal is a necessary tool for the player of multiple instruments with a pickup. Say you play guitar, mando, or a fiddle all going through the same DI. You will want someway to EQ and gain-up or down when switching between two instruments within the same rig. The high-pass filter it essential for most guitarists as it helps to avoid feedback and normalize your tone with a band. Place your sound in the ears of your listeners with this equalizer from L.R. Baggs.