Sanyo SP-780

Almost nothing is on record for the Sanyo SP-780. The model number fits Sanyo's speaker naming of the late 1970s, when the company made a wide range of car and home speakers, often with model numbers starting with "SP." Surviving period directories and product listings don't include the SP-780. No original brochure, service manual or advertisement has turned up in public archives.

The rest is inference. Sanyo was an active loudspeaker maker in the late 1970s and early 1980s. It offered models like the SP-757 (a 4″×7″ driver, 35-watt max, 4 or 8 ohm impedance, around $55 a pair) and the SP-795 (a two-way car system with a 5″ woofer and 3″ hard-dome tweeter, 15-watt max, 8 ohms). Both were reviewed in High Fidelity (1980, p.105; 1979, p.158). The SP-780 sits between those two numbers, so it was likely a comparable mid-range speaker, possibly a home bookshelf or car coaxial design. No confirmed specifications exist.

Anyone who finds an SP-780 in the wild would be adding new information to the record. For now, the model is a blank entry in Sanyo's speaker catalog.

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