The Tech 21 Bass Fly Rig v1 is a compact multi-effects unit for bassists featuring the legendary SansAmp circuit at its core. It combines an active 3-band EQ, a FET-based compressor, and a footswitchable chorus within a rugged all-metal housing. The integrated Octafilter section provides a palette of fuzz, octave, and filter effects for synth-like textures. A switchable Pre/Post-Boost and a chromatic tuner complete this mobile all-in-one solution. The unit was developed by Tech 21 in the USA to provide a full rig replacement that fits in a gig bag.