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メディア・コンバーター ALLNIC AUDIO D-10000のPDF オーナーズマニュアルをオンラインで閲覧またはダウンロードできます。ALLNIC AUDIO D-10000 16 ページ。 Digital to analog converter

WAVERSA SYSTEMS CUSTOM DIGITAL PROCESSING

With a digital section designed by Dr. C. Shin, principal of WAVERSA SYSTEMS and an expert in high-

resolution digital and digital to analog design for both military and commercial applications, the D-

10000 OTL/OCL DAC is unique in the marketplace. Except for the DAC chip it employs, the ES9018K2M

SABRE 32 Reference DAC ("Sabre DAC"), none of the D-10000 OTL/OCL DAC's digital components are

sourced from the audio supply market. In addition, the USB interface and SPDIF receiver are

specifically customized for use in the D-10000 OTL/OCL, and custom-built high end up-samplers are

utilized for user selectable DSD conversion and PCM up-sampling.

The D-10000 OTL/OCL offers the listener the flexibility to select listening directly to:

the source drive's audio signal at its native sampling rate, or down-sampled if that signal is

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above the limits of the D-10000 OTL/OCL's digital inputs, 384 KHz (so long as the source is

of sufficiently high quality – see "Operation");

a PCM signal from the source drive converted to DSD 128 in "real time"; or

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a PCM signal up-sampled from the source drive's native rate by a custom up-sampling chip.

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The ES9018K2M SABRE 32 Reference DAC is a high performance 32-bit, 2-channel audio D/A converter

with sampling to 32/384 KHz, DSD 128 and a 1.5 MHz up-sampler using a field programmable gate

array ("FPGA") USB interface. In the D-10000 OTL/OCL, however, the Sabre DAC chip is used for digital

to analog conversion only; all audio signal processing is performed by a Waversa Systems custom

designed processing chip set.

The D-10000 OTL/OCL converts PCM to DSD in real-time when CONV ("Conversion") is selected using

the D-10000 OTL/OCL's chassis face or remote control. When conversion to DSD is selected, all PCM

input samples are converted to 128 DSD via a custom built internal 5.6 MHz up-sampler and FPGA

DSD converter.

The D-10000 OTL/OCL up-samples PCM when UPSAMPLE is selected using the D-10000 OTL/OCL's

chassis face or remote control. When up-sampling is selected, all PCM input samples are up-sampled

using Waversa Systems' custom built 1.5 MHz audio signal processing chip, which also then down-

samples to the selected sampling rate prior to sending to the Sabre DAC for digital to analog

conversion.

The USB interface is implemented through network player hardware by Waversa Systems and is UAC2

standard compliant. This provides an extremely clean digital audio signal through complete galvanic

isolation, which strips the digital signal of any PC noise commonly created by a server's internal power

supply. Firmware updates and music data are also communicated through the single provided USB

input. This is accomplished by a special interface, again unique to Waversa Systems.

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