​​​​Original stereo vintage ad for ACOUSTIC RESEARCH INC.  AR Amplifier delivers 60 watts continuous power output per channel at less than one half percent harmonic distortion.
Main office was located at 24 Thorndike St., Cambridge, MA.
This unique old one page 1968 high fidelity component trade magazine advertisement would display beautifully matted and framed.  It would make a nice accompaniment to your vintage stereo.