Ovation K-Graphic Preamp

The Ovation K-Graphic (often referred to as the Kaman Graphic) preamp was introduced in 1986. It was a groundbreaking addition to the Ovation lineup, representing one of the first high-end acoustic-electric systems to offer a built-in 6-band graphic equalizer. This allowed players to have unprecedented control over their tone directly from the guitar’s shoulder, specifically targeting frequencies that often caused feedback or muddiness. ​Unlike the simpler rotary-knob predecessors, the K-Graphic featured sleek vertical sliders and a dedicated volume control, becoming a staple on premium models like the Collector’s Series and the Custom Legend. It was prized for its low-noise circuitry and its ability to shape the distinct "Ovation sound" for professional stage use. Despite its age, it remains a favorite among enthusiasts for its robust build and vintage analog warmth.