Six-Traq is a software synthesizer that accurately recreates the iconic Sequential Circuits Six-Trak from 1984, available for both Windows and macOS in multiple plugin formats including VST2, VST3, CLAP, AU, and AAX. Developed in native C++ code, it delivers high performance with minimal CPU load, making it suitable for complex projects and real-time use. This instrument captures the character and sound of the original hardware while introducing enhancements that expand its creative potential.

This synthesizer offers extended polyphony with up to 96 voices and flexible poly/multi modes, allowing for rich and layered soundscapes. Its sound engine features three oscillator waveforms, a white noise generator, and a classic self-resonating four-pole lowpass filter that faithfully emulates the vintage tone. Each section—oscillator, filter, and amplifier—has individual envelopes, providing detailed control over sound shaping. Additional tools include an onboard sequencer and arpeggiator, as well as SysEx import/export capabilities for seamless integration with hardware setups.

The interface is resizable for improved workflow and supports MIDI Learn, enabling all parameters to be assigned to MIDI CC for expressive performance and automation. Six-Traq also supports MTS-ESP by ODDSound for dynamic micro-tuning, expanding tuning possibilities beyond standard scales. This instrument is ideal for musicians and producers seeking an authentic vintage synth experience combined with modern functionality.