The Bridge cover of SA-CD drive mechanism is bigger
and longer than that of DP-550. This is very effective for
reducing noise caused of motor drive and air flow by disc
rotation. This cover is three storied parts, molded base,
iron insulator, and aluminum cover. There are
uncountable air gaps between each materials to absorb
vibration.
Furthermore, laser pickup module is mounted with
vibration absorbers. Those are made of the silicon which
is selected from many kinds of silicon materials for this
mechanism.
By these complete techniques, total noise level you hear
has been reduced dramatically. It become less than one
third of DP-550. In fact, you can hear nothing.
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