PSP N2O is a semi-modular multi-effect plug-in designed to provide extensive sound creation possibilities through flexible routing of high-quality audio processing modules. Users can configure up to four sound processing operators simultaneously, including morphing resonant and formant filters, EQ, delay, reverb, pitch-shifter, compressor/expander, bitcrusher, distortion, and full-wave rectifier. The plug-in supports up to four modulators such as LFOs, envelope detectors, and ADSR step sequencers, enabling dynamic and evolving textures. A built-in limiter ensures polished output using advanced algorithms derived from a highly regarded mastering limiter.

Developed as a successor to its predecessor, PSP N2O introduces new modules and expanded modulation features that explore fresh sonic territories. The engine has been completely redesigned and optimized for modern CPUs to deliver improved sound quality and performance. Its enhanced user interface caters both to sound designers crafting intricate soundscapes and to users seeking straightforward control without deep technical involvement. Convenient features like eight assignable knobs with MIDI learn support, animated response plots, and simplified modulation setup streamline the creative process.

PSP N2O also offers extensive customization options, including sidechain input and comprehensive preset management with 192 factory presets. The plug-in is optimized with SSE technology and supports keyboard and mouse wheel interaction for intuitive preset tweaking. Its expandable architecture allows for the addition of new operators and modulators in future updates while maintaining backward compatibility. This combination of flexibility, sound quality, and user-friendly design makes PSP N2O a powerful tool for musicians and producers aiming to expand their sonic palette.