High Impedance. The FV-300H is a volume pedal for guitar and bass. The FV-300L is a true stereo volume pedal, but it is designed for line output levels from a keyboard, line mixer, effects processors, or the effects loop of a guitar amp. The FV-300L can also be combined with a 1/4" stereo cable for use as an expression pedal. Aluminum die casting body enhances the structural strength of this pedal. Knob controllers let you easily adjust the volume and preset functions. Pedal rubber offers improved grip for precise operation. • MSKU FV-500H • UPC 761294400029