Little Pioneer.
Little Pioneer that looks like a Sansui. Of course, not at all - but black Pioneers are rare and quite untypical of that brand.

The SX-770 is filled with all that would become bare minimum on a quality component in the years to come and, in addition, "with its oiled wlanut cabinet and black front panel, the SX-770 makes a handsome addition to the decor of any room".

FEATURES:
all silicon solid-state
low-noise FET FM front-end
low-noise silicon transistors IF section
monolithic ICs MPX section
quasi-cpmplementary SEPP
two speaker outputs
center channel output
2x 20W power (20Hz...20kHz)