A4-1B Analog Automated Opto Valve Compressor - Ultimate

Тhe A4-1B Tube-Optical Compressor combines the warmth of classic tube compression with the precision and flexibility of modern technology. Faithfully recreating the iconic Scandinavian sound, the A4-1B boasts a fully analog circuit for the audio signal, built with the highest quality components to ensure precise and transparent compression. Its advanced features, including а DAW plugin for remote control, automation and filtering for targeted compression, provide a seamless experience for audio professionals seeking both authenticity and innovation.

As Authentic as It Gets.

Crafted with premium analog components, the A4-1B is not just a compressor—it’s a testament to the timeless quality of true analog engineering. A painstakingly accurate signal path, premium tubes, and custom UK-made transformers combine for unparalleled musicality and low-end richness, matching precisely the compression behavior of the original. Even when pushed to the limit, the A4-1B remains transparent, breathing new life into vocal tracks, bass, keys, or percussion.