Mark Levinson N32 - Manual (Page 11)

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Nº32 Reference Preamplifier Getting Started
A Mark Levinson-designed discrete volume attenuator controls the
master volume level with unprecedented accuracy and sonic
neutrality. Constructed from Arlon® circuit boards with local
power supply regulation and bypass capacitors, this volume attenu-
ator generates optimal power and isolation for even the most
sensitive adjustments. Sixty-six surface-mounted, precision resistors
per channel provide more than 65,000 possible settings between
0dB and 80dB (maximum attenuation), accommodating adjust-
ments in 1.0dB increments up to 23.0dB and in 0.1dB increments
above 23.0dB.
Unlike most stereo preamplifiers, the Nº32 is designed to integrate
with multi-channel surround sound processors without the compli-
cations associated with competing stereo and multi-channel
volume controls. A unique surround sound processor (SSP) mode
deactivates Nº32 volume controls and sends line-level input signals
to the associated processor. With no interference from the Nº32, the
processor controls the relative volume level of all channels, main-
taining its carefully calibrated output levels.
To maximize channel separation, left-channel and right-channel
connectors are located on opposite sides of the rear panel. The
connector complement includes separate main and record stereo
outputs, available on both balanced (XLR) and unbalanced (RCA)
connectors. Balanced and unbalanced main output connectors are
independently buffered, allowing them to be used simultaneously
without performance degradation. In addition, balanced main
output connectors are wired in-parallel with one another (as are
unbalanced main output connectors) to accommodate bi-amplifica-
tion and other applications.
The Nº32 represents the ultimate combination of compelling
performance and limitless potential. Its unique dual-chassis struc-
ture shields audio circuits to create truly spectacular sound, while
its advanced design – including eight configurable inputs, separate
main and record outputs, complete surround sound processor inte-
gration, and extensive control possibilities – accommodates even
the most demanding applications. All of this makes the Nº32 a
reference-quality component befitting the most sophisticated
music reproduction systems.