AccuVerb was a specialist American professional audio brand best known for its valve-driven analogue spring reverb. Produced by Sound Enhancements, the AccuVerb combined dual three-spring Accutronics reverb tanks with 12AU7A valve circuitry in a rackmount studio processor, providing mono or stereo operation and also functioning as a valve preamplifier. Its unusual combination of traditional spring reverberation and professional studio interfacing made the AccuVerb a distinctive alternative to the digital reverberation processors that dominated studios during the 1990s and early 2000s.
