Capitol Chambers is a unique plug-in developed in collaboration with Capitol Studios, renowned for its legendary subterranean echo chambers located beneath the Capitol Tower in Los Angeles. This plug-in authentically recreates the rich, natural reverberation that has shaped iconic recordings from artists like Ray Charles, Frank Sinatra, Beck, and Muse. By capturing the essence of these distinctive underground spaces, it offers a highly realistic and immersive ambience that surpasses traditional plate, digital, or convolution reverbs.

The design of Capitol Chambers is based on the original acoustic echo chambers conceived by Les Paul and Bill Putnam Sr., featuring reinforced concrete construction and unique shapes that produce a smooth, balanced decay with natural room tone. Using historic technical diagrams and modern insights, the plug-in replicates classic microphone and speaker placements, including vintage equipment like Altec 21D mics and custom speaker configurations. It also incorporates modern setups and innovative combinations curated by Capitol's chamber expert, providing users with a broad palette of ambient textures.

Featuring UA's Dynamic Room Modeling technology, Capitol Chambers enables precise control over spatial and temporal reverb characteristics, including mic positioning and reverb decay. Additional controls such as pre-delay, tonal shaping, and stereo width allow for detailed customization to fit various mix scenarios. The plug-in also includes presets crafted by Grammy-winning engineers, offering a professional starting point inspired by legendary recordings. Capitol Chambers brings the timeless warmth and depth of Capitol Studios’ echo chambers directly into modern digital audio workstations.