it from the audio section and other sections of
the player. The damper bridge is machined
from solid aluminum, increasing mass and
rigidity, thus helping to eliminate flexure
from day-to-day operation and promoting sta-
bility in the physical mechanism. All of these
design attributes work in concert to provide
smooth, quiet, and consistent transport oper-
ation.
The Power SupplyThe power supply is the foundation upon
which the audio and video signals are built.
The analog audio outputs utilize a dedicated
power system. This consists of a custom
designed low-noise, toroidal transformer, a
secondary analog power section which per-
forms the first stage of regulation and filter-
ing, followed by a final stage of local regula-
tion in the output section itself.
Power to the digital audio and video sections
is provided by a switch-mode power supply
that delivers a single constant voltage. This is
distributed to local modules where it is con-
verted to the voltages required for each indi-
vidual circuit. This “point of load” power dis-
tribution technique prevents unwanted inter-
actions caused by uneven supply during peri-
ods of high demand from any single circuit.
Another advantage is the efficient distribu-
tion of power reducing thermal dissipation
and providing a more stable operating envi-
ronment.
The Video ProcessorThe Nº51 provides the video performance
and flexibility that one would expect from a
Mark Levinson Media Player. Custom cali-
brated scaling and de-interlacing are provided
with support for resolutions up to 720p and
1080i. Other features include aspect ratio
5
Interior view of the Nº51 displaying
the cast aluminum transport assembly.