The TTS-6000 is an LP drive sold as such or with several Sony bases.
As for quite a few high-end Sony audio components, however, "sold" is a sizeable overstatement : it was not exported, was advertised for very little and got relegated to the catalogs' back pages very quickly.
Unlike the TTS-8000 which was briefly exported to the UK, the TTS-6000 remained in Japan.
Looking almost identical, the 6000 retained the X'Tal Lock system with barium-ferrite magnetic strip on the platter and 8-pole reading heads but has no pitch controls.
The motor is also different (ie. cheaper to build) but is a brush-less & slot-less DC Servo motor with two Hall elements just the same - the one which would be used in the PS-X70, PS-B80 or PS-X800.
Delivered stock on the TTS-8000, the OL-2K mat was here optional ; the rest is more or less the same with S/N ratio specs upped by 3dB, thanks to the new motor.
The many (optional) bases and armbases are the same as for the TTS-8000 - see that page for all the details.