Three-Body Technology (TBTECH Co., Ltd.) is a music software company that develops virtual instruments and audio effect plugins, combining DSP programming with modeling and machine-learning techniques. The team describes itself as musicians, programmers, and audio engineers focused on studio tools, and its products are distributed both directly and through partners such as Plugin Alliance.

The company is best known on the effects side for Kirchhoff-EQ, a parametric EQ that ships with a large collection of analogue-matched curves and vintage EQ models, and for the Cenozoix Compressor, a broadband/multi-character compressor. Other titles in its effects catalog include SpecCraft (dynamic resonance suppressor and smart EQ), FutureMB (multiband dynamics), Deep Vintage (an APNN-based neural-network hardware emulation series), Cabinetron (guitar cab/IR processor), Sapphire Drive, Tape Vibe, VO-TT, Trinity Shaper, OwnTHD, and Modern G-31.

On the virtual-instrument side, Three-Body Technology released Heavier7Strings, a deeply sampled seven-string electric guitar instrument aimed at metal and rock production with its own built-in amp/effect rack and MIDI pattern library. The instrument catalog also includes the Chinese-traditional-instrument libraries Whisper of Loong, Lost Soul, Tear of Land, Phoenix Scream, and World in Gourd, along with the percussion library Raindrop & Blade.

Three-Body Technology has 24 products cataloged on Equipboard, including EQ Plugins, Saturation Plugins, and Dynamic Processor Plugins. Most Three-Body Technology products fall in the mid-tier range — professional-grade without flagship pricing.