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James Bongiorno left GAS and founded SUMO Electric Co. to create a new audio line. What emerged was the four-quadrant full complementary differential balanced power amplifier, "The Power".
Ultimately, the SUMO product line was expanded to include multiple amplifiers, preamps, tuners, and numerous other products. Information on them is hard to find, so I’m missing some details below.
I am always looking for literature, manuals, schematics, etc. for these, so if you have any I’d love to hear from you!
To see a SUMO ad, click here. Product literature (including specifications, spec sheets, etc.) is here...
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