THORENS TD 1600 Fully Manual Two-Speed Stereo Turntable (High Gloss Walnut) - Manual (Page 34)

34 PLACEMENT OF THE TURNTABLE
Placement of the turntable
The suspended Sub chassis
The Thorens TD 1600 and TD 1601 are equipped with
a spring-mounted sub chassis that neutralises mechani-
cal disturbances from the ground and resonances of the
drive motor.
This sub chassis consists of a specially shaped MDF
board, which stands on three damped cone springs,
which are bolted to the bottom plate of the turntable.
This principle of spring and damper is best compared
with a suspension in the car, here is a spring combined
with a shock absorber to prevent an uncontrolled swin-
ging. Platter bearing and tone arm board are mounted
on the sub chassis, while the motor and cover plate are
connected to the bottom or the frame. Thus, the moving
parts are isolated from the solid.
The sub chassis itself must be tuned to the particular
turntable, the spring tension is regulated so that it vibra-
tes evenly and as if piston-like with a stimulation without
breaking laterally and the height must be adjusted so
that when the device is aligned horizontally, turntable
and tone arm board are parallel to the fixed top board
and the platter. Platter must not touch top board in ope-
ration.
The correct settings are already made in the factory and
normally must not be changed by the user of the turn-
table. If something has to be readjusted, the necessary
adjustment screws are accessible from the underside of
the turntable. A qualified retailer or our service specialist
will be happy to help if a readjustment is required later.
Placement
Turntables with sub chassis require a different kind of
installation than record players with a fixed chassis or
so-called mass drives, which prefer a stable base with
high mass. However, sub chassis drives like Thorens
TD 1600 and TD 1601 can be placed on a light but sta-
ble surface. A light, stable table, with the plate and legs
firmly connected, fits very well, for example.
It is important that the turntable is in the balance. For
this it is possible to screw the feet up or down.