Tube-Tech CL 1B Opto Compressor

The Tube-Tech CL 1B is an all-tube optical mono compressor known for delivering smooth, musical compression that maintains the source’s clarity even at extreme settings – this is where it truly outshines other compressors. Its user-friendly operation allows quick and easy adjustments to achieve optimal results.

The Tube-Tech CL 1B is the most popular unit in the Tube-Tech lineup, and for good reason. It excels on vocals and instruments such as guitar, bass, and keys across any genre, providing musical compression that fits seamlessly into a mix without adding muddiness or distortion, even at extreme levels.

Operating theTube-Tech CL 1B is simple: dial in your settings and hear immediate, unmistakable results. Its effectiveness and ease of use have contributed to its legendary status, with thousands of units sold and its signature sound appearing on countless hit records.

It has become an essential tool for top vocalists and musicians, particularly in genres like hip-hop and rap, where it’s a well-known staple for capturing standout vocal performances.

The Tube-Tech CL 1B’s design features an optical gain-reduction element placed after the input transformer and controlled by a sidechain amplifier with both fixed and variable attack/release time circuits that can be used independently or together. A dedicated bus selector allows linking multiple compressors.

The gain-reduction stage is followed by a tube-based push-pull amplifier capable of up to 30 dB of variable gain. Both input and output are transformer-balanced and fully floating, with static screens between windings for added isolation.