Accuphase DP-570 SA-CD Player

Yokohama, Japan | 2021 – A high-quality integrated SA-CD/CD player born from a synthesis of the latest technologies.

Equipped with quiet and smooth disc loading, the high rigidity and low center of gravity of the SA-CD/CD drive vastly improves readability, while the MDS+ type D/A converter with four parallel circuits accurately reads disc information and converts analog signals. It also supports a digital connection with a voicing equalizer and provides a programmable playlist feature that lets you enjoy listening in the order you prefer. Enjoy listening to the DP-570, the next step in the pursuit of the ideal disc playback experience.

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The Technology of Precision

Features and Functions of Transport Section

Accurate Reading

A high-rigidity SA-CD/CD drive mounted on a triple layer bottom plate with exceptional vibration reduction properties and all supported by high-carbon cast iron insulators. This configuration creates a strong integrated structure that suppresses the effect of external vibrations on the traverse mechanism. Four newly developed high-quality butyl “elastic dampers” connect the traverse and disc mechanisms, drastically reducing external vibrations from being transmitted to the traverse mechanism and protecting the lens actuator that reads discs. Music information is read accurately thanks to these vibration protection technologies and then sent to the digital processor.

Quiet Operation

Vibrations from spinning discs are typically transmitted to the chassis, which then resonates and amplifies the operational sounds. The “elastic dampers” on the traverse mechanism greatly reduce chassis resonance. The five-layer large bridge cover surrounding the traverse mechanism also shields against air-vibration noise from high-speed rotation. This improvement allows the DP-570 to operate quietly without being affected by rotation.

Smooth loading

Carved from an aluminum block and then finished by a hard anodized aluminum and satin treatment, the elegant and elaborate disc tray uses steel bearing shafts to open and close smoothly and quietly.

Features and Functions of the Digital Processor Section

MDS+ type D/A converter with four parallel circuits

The MDS+ (Multiple Delta Sigma+) conversion principle is a revolutionary D/A conversion routing that employs multiple delta-sigma type D/A converters connected in parallel for drastically improved performance. By driving four outputs from a high-performance ES9028PRO DAC chip (ESS Technologies) in parallel, the DP-570 almost doubles (=√4) overall performance for distortion, noise, linearity, and more.

Because the improvements provided by the MDS principle are independent of signal frequency and level, output signal noise at very low levels is also minimized, a feat that conventional delta-sigma converters find extremely difficult to achieve.

Direct Balanced Filter circuit

By making the line output circuits and balance output circuits independent of each other, the Direct Balanced Filter circuit does not affect the output signal even with two preamplifiers connected.