Accuphase DP-570 SA-CD Player

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
Accuphase DP-570 SA-CD Player
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
Accuphase DP-570 SA-CD Player

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.

Accuphase DP-570 SA-CD Player

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.

Accuphase DP-570 SA-CD Player
Direct Balanced Filter circuit
Accuphase DP-570 SA-CD Player

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.

High-precision clock playback
Accuphase DP-570 SA-CD Player

The high-performance (digital) audio interface chip AK4118A (Asahi Kasei Microdevices) drastically reduces jitter for high-precision clock playback.

Accuphase DP-570 SA-CD Player
Accuphase DP-570 SA-CD Player
Advanced features
Accuphase DP-570 SA-CD Player

High-grade SA-CD/CD drive

MDS+ type D/A converter with four parallel circuits

Direct Balanced Filter with independent line and balanced signal paths

Power supply using analog circuits in a discrete configuration for low noise

Large power transformer with separate analog and digital windings

Customized smoothing capacitors for optimum sound quality

Programmable playlists

Display with sampling frequency and number of quantization bits

Playback of DVD-R and other data discs containing music files

Output level control allows adjustment down to −80 dB

Digital interface for Accuphase Voicing Equalizer

Abundant transport outputs (HS-LINK, OPTICAL, COAXIAL)

Abundant digital inputs (HS-LINK, USB, OPTICAL, COAXIAL)

2 (balanced, line) analog outputs

Balanced output phase selector

Aluminum hairline finish top plate

Accuphase DP-570 SA-CD Player
Accuphase DP-570 SA-CD Player
Accuphase DP-570 SA-CD Player

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