Sony PS-6750 (1976 - 1978) The smaller one. Well, yes and no for the double-base system (SBMC + wood) was shared with the TTS-8000 monster - very efficient and quite good-looking, too, while the carbon tonearm, antistatic lid, gel-filled feet and fluid-filled mat were imported from the PS-8750 elder. SBMC is btw mainly made of polyester and fiberglass. However, the tonearm of the PS-6750 isn't a carbon PUA-1600S like on the PS-8750...