The FZ-5 is a modern pedal built for the modern guitarist, but the sounds you can get from the FZ-5 are pure retro. Looking back at the glorious rock sounds of the '60S and '70S, the FZ-5 recreates its vintage fuzz through BOSS state-of-the-art cosm technology. Recall the fuzz-filled flavors of classic pedals, such as the Maestro fz-1a, fuzz face and Octavia pedals, and kick 'EM into overdrive with the fz-5's boost knob. BOSS' proprietary cosm technology allows guitar players to recreate classic fuzz boost control for more aggressive tone. The FZ-5 is the perfect weapon for players wanting to beef up their rigs with classic retro fuzz Artillery.