​​​​Original vintage ad for SONY CORPORATION OF AMERICA.  TA-4300 electronic crossover, TA-3120 amplifier.  Get drunk with power.  The crossover goes between the preamplifier and the power-amplifier portions of your present stereo amplifier.  It divides the audio-frequency spectrum into three ranges, and sends each range to a separate amplifier, your existing power amplifier, plus the two Sony TA-3120's.  Each feeds a speaker expressly designed to handle that particular part of the audio spectrum.
Main office was located at 47-47 Van Dam St., Long Island City, NY.
This unique old one page 1968 high fidelity stereo equipment component trade magazine advertisement would display beautifully matted and framed.  It would make a nice accompaniment to your vintage stereo.