The Line 6 FM4 Filter Modeler Pedal is a studio-quality, professional effects pedal with 16 models of vintage and monophonic synth effects.
The Mu-tron Bi-Phase; the Korg X911 Guitar Synth-are these rebel fighter ships from The Empire Strikes Back? Or maybe proton thrusters from outtakes of Babylon 5? Nope. These, and the other 13 techy tone temptations loaded into Line 6's galactic-purple FM4 Filter Modeler stompbox, represent the outer limits of guitar filter effects, a territory many consider to be today's most fertile terrain for discovering new sounds, timbres and tone colors.