Technics SL-1500C Manual page 7

Turntable Platter
Platter shape optimised by simulation
Two-layer Structure with Improved Vibration Damping Performance
The platter on which a vinyl record is placed features a two‐layer structure with deadening rubber on the entire back surface to
eliminate unwanted resonance in the aluminium die‐cast platter. The platter offers high rigidity and outstanding vibration‐
damping characteristics to prevent harmful vibration from being transmitted to the record and delivers clear sound.
To increase the inertial mass and minimise vibration, the shape of the aluminium die‐cast section was optimised through
simulation. For extra rigidity, reinforcing ribs were added to the back side. The increased area of contact with the deadening
rubber contributes to the outstanding vibration‐damping characteristic that is more than two times higher than that of the SL‐
1200MK5.
150
100
50
0
0.02 0.04 0.06 0.08 0.1 0.12 0.14 0.16 0.18 0.2 0.22 0.24 0.26 0.28 0.3
‐50
‐100
‐150
: 1500C
︓1200MK5
Technical Information for Hi‐Fi Audio System
7