Brand

Tech 21

Tech 21 began in Manhattan in 1989 when designer Andrew Barta introduced SansAmp, an all-analogue amplifier and speaker-emulation circuit for direct recording. SansAmp remains central to the company’s guitar and bass range, appearing in standalone preamps, DI pedals, rack units and Fly Rig products. JustPedals listings include the GT2, Programmable Bass Driver DI, Para Driver DI and Character Series VT Bass DI, as well as the MIDI Mouse. These products shape or send a direct instrument signal, rather than providing only conventional modulation or ambience; compare instrument voicing and output connections.

Category

Preamp & DI Pedals

A preamp brings an instrument signal to a controlled level and shapes its impedance, gain and frequency balance before amplification or recording. A DI converts the signal for a balanced, low-impedance connection and may include ground lift, pad and transformer isolation. Combined units can add drive, cabinet filtering, effects loops and parallel outputs while keeping the direct path stable.