Housed in a matching aluminum chassis, the Accu Plus is a sophisticated DC power supply upgrade designed exclusively for the Clearaudio Basic Plus and Balance Plus phono stages. The Accu Plus provides these phono stages with pure, clean DC battery power. Battery power guarantees that no noise or distortion from the AC mains supply can pollute the delicate phono signal. The innovative circuitry of the Accu Plus monitors user-replaceable NiMH batteries, charging them when necessary for optimal performance.

The Absolute Sound 2010 Product of the Year Awards (January 2011, Issue 209) says, "Those seeking the last work in low noise and isolation, should also consider the Clearaudio Accu Plus, an outboard NiMH battery supply ($900), as a worthy option." Reviewed by Neil Gader, Issue 206