The Tube-Tech CL 1B has earned its reputation as a go-to vocal compressor across a wide range of music styles. Its warm, musical opto gain reduction delivers a smooth and natural sound that enhances vocals, drums, bass, and more. Its ability to provide rich, transparent compression without compromising the tone has made it a favorite among producers working in genres from classic rock and pop to hip hop and EDM.

This latest Mk II version is a complete sonic overhaul built on years of advancements in audio technology and engineering expertise. It combines the original character with modern enhancements, offering improved sound quality and a refreshed interface designed for today’s workflow. The addition of the Generation Switch allows users to seamlessly toggle between the classic Mk I sound and the new Mk II, providing flexibility and ease of use in one powerful tool.

The CL 1B’s unique opto compression responds quickly to transients while maintaining a smooth release that gently levels the signal’s body. This creates a musical compression effect that works beautifully on vocals, acoustic instruments, and bass, adding warmth and presence without harshness or pumping. Its signature sound has become essential for mix engineers seeking to add depth and polish to their tracks with a compressor that sounds great on virtually any source.