Ovation OP-4BT Preamp Owner's Manual

This is the official owner's manual for the Ovation OP-4BT preamp system, designed for Ovation Acoustic/Electric guitars. The manual covers the preamp's features including Gain control, three-band EQ (Bass, Mid, Treble), built-in chromatic tuner with LCD display, and operational instructions. Technical specifications are included, detailing frequency response, S/N ratio, and piezo output measurements, published by GEWA music GmbH of Adorf, Germany.