Marantz Sm 1000
(1979 - 1984)

The monster in which, in toto, there's one "cut-core" 800VA transformer, two 23.500µF caps, 6 drivers and eighteen 200W transistors - per channel.

The cooling system was developped by NASA - or so the liiterature says : Sony said the same thing for the Heat-Pipe cooling system... which Marantz used for some of the smaller ESOTEC loke the Sm-6.
Anyway - the system allows for a maximum of 8° temperature variation and was inaugurated (at Marantz) with the Model 500 and its many siblings like the Model 510M bestseller.

Highly reviewed back then in Japan and still quite desirable - unfortunately very very rare.

The Marantz Sm 1000 is the very last unit fully designed in the U.S.A. (by Mike Castor) but built in Japan) : it was the last of the "A"-Line and Philips was just about to take over 43% of Marantz when the Sm 1000 was announced. The end of the USA Marantz.