The Feedback Master features a phase inversion control and two precise Garrett Null sweepable notch filters to accurately locate and eradicate feedback from top and air resonances without destroying your tone. The circuitry is all-analog pure class A from end to end to provide great tone quality. It works with virtually any pickup (active or passive) and includes a belt clip and mic stand adapter.

Acoustic Guitar September 2002	"...if feedback is a serious problem, I'd highly recommend giving the Feedback Master a try."
Performing Songwriter June 2002	"L.R. Baggs' Feedback Master preamp does exactly what its name implies."
Guitar World Acoustic #51	"In the war against feedback, L.R. Baggs has produced one solid soldier."
Michael Macdonald Guitarist, Ottowa Folklore Center	"The L.R. Baggs Feedback Master is going to have the same significance for acoustic musicians as Prometheus did bringing fire to Earth."