The Digital Equivalent of Straight Wire with Gain
The DSD analog-to-digital converter produces a one-bit pulse train that appears remarkably analog. In this manner, DSD encoding
combines the
advantages of digital recording with the well-regarded
characteristics of
analog sound. For Fig.16: The Direct Stream Digital pulse train recording artists,
“looks” remarkably like the analog waveform it producers and
represents. More pulses point up as the wave goes
engineers, DSD
positive and down as the wave goes negative.
technology is a
Overview of DSD Circuitry
priceless new tool. For audiophiles, it’s a major step closer to pure music.
Not surprisingly the DVP-S9000ES audio section makes extensive use of technologies originally developed for the world’s first SACD player, the Sony SCD-1. Here are the highlights.

Direct Stream DigitalTM Encoding:

A Foundation for the Future

For nearly 30 years, digital audio has been based upon Pulse Code Modulation (PCM) technology — and nobody knows PCM better than Sony. We’ve used it to develop everything from Compact Disc and DAT to professional DASH recorders and digital mixing consoles. But to achieve a truly fundamental breakthrough in music reproduction, Sony has invented a truly amazing audio technology: Direct Stream Digital (DSD) encoding. DSD encoding is destined to serve as the foundation for digital audio in the future.

Simplifying the Signal Path

Even the most advanced PCM record/playback systems require decimation and interpolation filters that can cause problems, including requantization noise, passband ripple and ringing. These degradations can smear musical overtones, muddy the soundstage and compromise overall transparency. A radically simpler approach, Direct Stream Digital processing eliminates these problems by eliminating the filters! It enables a 1-bit signal to be recorded directly.

Beyond Comparison

Direct Stream Digital processing is dramatically different, even when compared to the most sophisticated PCM technology. This 1-bit system encodes music at an astonishing 2,822,400 samples per second. The result is more than just superb frequency response and dynamic range. You’ll hear the inner detail of choral ensembles. The reverberation trailing from a guitar chord. And the acoustic space surrounding the instruments. With DSD technology, you hear every nuance of sound reproduced with incredible ease and clarity.

1.RF Processor. For all types of disc, including DVD, this circuit performs clock signal extraction, synchronization, demodulation and error correction.

2.DSD Decoder. For SACD only. Authenticates the SACD invisible watermark, separates text from music and forms the left and right DSD pulse trains.

3.ACP System. For SACD only. Controls the influence of switching distortion.

4.VC24 Plus Digital Filter. For CD only. A supremely advanced version of the familiar 8x oversampling digital filter.

5.Current Pulse D/A Converter. For SACD and CD. Supremely accurate conversion from 1-bit digital to analog.

6.Low Pass Filter. The SACD analog low pass filter helps deliver frequency response to 100,000 Hz, unprecedented in a home audio source component.

Fig. 15: In high-end audio, simplest is best. And compared to conventional PCM, the new DSD system is far simpler.

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Sony S9000ES Direct Stream DigitalTM Encoding, Simplifying the Signal Path, Beyond Comparison, Foundation for the Future
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S9000ES specifications

The Sony S9000ES is a cutting-edge addition to Sony's line of high-performance home audio solutions, designed to deliver an unparalleled listening experience for audiophiles and casual listeners alike. This model stands out for its exceptional build quality, advanced technologies, and versatile connectivity options, making it a noteworthy choice for both music enthusiasts and home theater setups.

One of the key features of the S9000ES is its support for a wide range of audio formats, including high-resolution audio formats like DSD, FLAC, and WAV, making it a go-to option for those who value fidelity in their music. With built-in support for streaming services like Tidal, Qobuz, and others, users can easily access their favorite songs in high quality.

The S9000ES is equipped with Sony's advanced Digital Signal Processing technology, which enhances audio performance by ensuring minimal distortion and maximum clarity. The device employs a sophisticated DAC (Digital-to-Analog Converter) that accurately processes audio signals, resulting in rich, immersive sound.

Another notable characteristic of the S9000ES is its robust construction. The unit features a solid chassis designed to minimize vibrations, ensuring a cleaner and more accurate sound reproduction. The use of premium components further enhances the overall performance, making this model a reliable choice for long-term use.

The S9000ES also incorporates Sony's exclusive DSEE HX technology, which upscales compressed audio files, restoring high-frequency sounds lost in compression. This technology ensures that even lower-quality tracks can be enjoyed with enhanced detail and depth.

Connectivity options on the S9000ES include HDMI, USB, and both optical and coaxial inputs, allowing users to connect a wide range of devices. Wireless connectivity through Bluetooth and Wi-Fi enables seamless streaming from smartphones, tablets, and computers.

Finally, the S9000ES is designed with user-friendliness in mind, offering an intuitive interface and remote control for seamless operation. Whether building a home theater setup or enhancing a music listening space, the Sony S9000ES promises to deliver unmatched performance and versatility, truly embodying Sony’s commitment to audio excellence.
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