SY-1000 Guitar Synthesizer Soar Into the Infinite. View Product GP-10 Guitar Processor Instrument modeling processor and multi-effects unit with COSM amp and instrument models, alternate tunings, USB audio, and guitar-to-MIDI conversion. View Product GR-55 Guitar Synthesizer Revolutionary fusion of guitar synthesis and COSM guitar modeling with up to four simultaneous sound sources. View Product GK-3 Divided Pickup Divided pickup offering possibility of GK-devices to guitarists. View Product GK-3B Divided Bass Pickup Divided pickup offering possibility of GK-devices to bassists. View Product GKC-5/-10 13-Pin Cables Special cable to connect GK-compatible guitar gear. View Product US-20 Unit Selector Floor pedal unit to control and switch between two GK-compatible devices. View Product GKC-DA GK Converter Drive BOSS and Roland 13-pin GK devices from the next-generation Serial GK interface. View Product GKC-AD GK Converter Drive the next-generation BOSS Serial GK interface from a Roland GK-3 or GK-3B Divided Pickup. View Product < Featured ProductBOSS New Products Check out the new products from BOSS. Find Out More Featured VideoSY-1000 Guitar Synthesizer The SY-1000 is a breakthrough creation machine that transforms your guitar or bass rig with limitless sound design options. Find Out More Featured VideoSY-1 Synthesizer Journey to New Sonic Frontiers. Find Out More >