The API Collection offers four meticulously modeled plugins inspired by classic API audio modules, delivering an authentic sound experience trusted by engineers worldwide. This suite includes the 550A 3-Band Equalizer, 550B 4-Band Equalizer, 560 Graphic Equalizer, and the 2500 Stereo Compressor. Each plugin captures the distinct tonal character and sonic nuances of the original hardware, providing a rich and powerful palette for mixing and mastering both in the studio and live settings.

The API 2500 Stereo Compressor stands out for its dynamic control and precision, allowing users to sculpt punch and tonal balance with ease. Its unique dual-channel design can operate as two independent mono compressors under a single compression setting, while auto-makeup gain maintains consistent output levels during adjustments. Featuring both feedback and feed-forward compression modes, the 2500 offers a flexible range of musical settings that have made it a mainstay in professional audio production.

Complementing the compressor, the API 550A and 550B equalizers deliver distinctive tonal shaping with their overlapping frequency bands and intuitive controls. The 550A provides three bands with selectable shelving or peaking filters and an independent band-pass filter for precise adjustments. The 550B expands on this with four bands featuring 'Proportional Q' technology for dynamic bandwidth control. Meanwhile, the 560 Graphic Equalizer offers ten bands with high headroom and matching boost and cut characteristics, making it ideal for detailed signal enhancement and room tuning. Together, these tools bring the legendary API sound to any audio project.