Mark Levinson N51 manual Audio Processor

conversion to eliminate letter boxing and pil- lar boxing. High quality 14-bit / 216MHz video Digital-to-Analog Converters (DACs) provide exceptional video output for analog displays. The On-Screen-Display is unique to the Nº51 and complements the elegance of its industrial design.

In addition to the standard analog video out- puts, Nº51 includes a High-Definition Multimedia Interface (HDMI) output for use with digital display devices. By using the HDMI output with a high-definition digital display, the video signal remains in the digital domain all the way from the source to the display. In an analog system, the digital video signal from the disc is converted to analog in the player and back to digital in the display, introducing unnecessary conversions and possible degradations of the picture.

The Nº51 also includes a separate monitor output for use with the Nº40 Media Processor’s preview function.

The Audio Processor

As in the Nº40, the Nº51 employs a Direct Digital Synthesis circuit incorporating a very high frequency reference clock. The jitter per- formance is limited only by the characteristics of the original clock and yields an extremely accurate, stable, time reference. All data and clock signals carrying the digital audio infor- mation to the DACs are sent via a balanced Low Voltage Differential Signaling transmis- sion line. This transmission scheme has proven effective in the telecommunications industry, as well as in the Nº40 and Nº390S. The Nº51 also has the ability to output 44.1, 48, 88.2, or 96kHz signals from the S/PDIF, AES, or TOS outputs using a dedicated sam- ple rate converter.

Digital-to-analog conversion in the Nº51 is implemented using balanced multi-bit Sigma/Delta DACs delivering superb techni- cal performance. In addition to their multi-bit architecture, these DACs have a differential current output, which allows us to optimize

Nº51 remote control constructed

from cast aluminum.

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