PSP 85 is a dynamic delay effect plugin that explores the creative potential of variable sample rate delay lines. Building on the foundation of its predecessor, it introduces numerous enhancements and optimizations while maintaining full compatibility with existing presets and banks. This plugin offers a rich collection of sixty new presets, designed to showcase its expanded features, alongside a supplementary set of classic factory sounds for more traditional delay applications.

The plugin provides advanced control options such as predelay for intricate rhythmic layering, delay line output panning, and delay gating to shape the number and intensity of echoes. It includes an automatic ducking feature with an auxiliary sidechain input to maintain clarity by reducing unnecessary echoes during busy passages. Additional sound design tools include filter resonance modulation, a modulation signal generator with multiple waveform choices, and a vintage reverberation module that emulates spring and plate reverb characteristics for added depth.

PSP 85 supports high-resolution audio processing with 64-bit streams and sampling rates up to 192 kHz, ensuring pristine sound quality. Real-time multipoint resamplers enable smooth, continuous delay time adjustments with minimal distortion. The plugin also offers flexible filter routing, LFO synchronization to song position for consistent playback, input muting for serial delay configurations, and comprehensive MIDI and automation support. These features make PSP 85 a powerful tool for both experimental and conventional delay effects.