Insulator Feet; Slide-Top Loading Panel - Sony SCD-1 Technical Background

3.4. Insulator Feet.

To prevent shelf-borne vibration from entering
the chassis, Sony's eccentric insulator feet
locate the screw hole off center. Varying the
radius from screw to perimeter tends to vary the
resonant frequency within the foot—diffusing one
potential path for vibration.
The SCD-1 is distinguished by sophisticated
5-piece insulator feet. The upper foot is made
of a high-carbon cast iron that offers high
attenuation. The lower foot is made of brass.
These two halves meet at a pinpoint contact,
carefully designed to block the propagation of
vibration. Finally, the pinpoint itself is surround-
ed by a gel shaped damper to reduce even
trace resonances.

3.5. Slide-Top Loading Panel.

The loading door at the top of the chassis is a
jewel of mechanical engineering. It glides on
concealed guide rails. The panel rises slightly as
it opens—and lowers to its original height when
it closes.
The motor cover and floating mechanism are
insulated against noise and vibration. The disc
housing is treated with an anti-vibration coating.
A high-carbon textile with a Teflon ® coating
ensures sound insulation and high reliability. The
main axle for the slide mechanism is made of
stainless material, while the bearing is made of
solid brass.
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