The Duplex by Ovation - Guitar Amplifier Catalog
Year: 1970
A vintage promotional brochure for Ovation's 'Duplex' amplifier system featuring 100 watts RMS power output. The amplifier offers dual channels (guitar and bass) with independent pre-amps, mid-range horns, and various effects including reverb, top boost, fuzz, and failsafe circuits. Two models are advertised: K6107 (4-speakers) and K6109 (2-speakers), priced at $595.00 with an electronic strobe tuner included.