The Fishman Pro EQ Platinum Acoustic Guitar Preamp utilizes a 4-band equalizer modeled after the versatile Prefix Plus, with each band assigned to just the right frequencies for acoustic equalization. Also borrowed from the Prefix Plus design are feedback-fighting phase and notch controls. An innovative "smooth" compression circuit has been added to subdue explosive high frequencies when you strum hard or snap the strings. The Fishman Pro EQ Platinum also features a balanced XLR output, allowing it to be powered by phantom power. The ground lift feature is designed to function even when phantom power's applied to the preamp.