Accuphase DP-570
Specifications and features
Accuphase DP-570 CD/SACD Player
The Accuphase DP-570 is a high-end integrated CD/SACD player representing the fourth generation of the Japanese brand’s mid-range player line. As the successor to the DP-560 released in 2016, this device combines cutting-edge technology and reliability to deliver an exceptional listening experience for the most demanding audiophiles.
Design and Construction
The DP-570 features an elegant and robust design, characteristic of the Accuphase brand. Its aluminum chassis with a “hair-line” finish on the top cover gives it a sophisticated look. The gray metal side panels harmoniously complement the device’s aesthetics.
The construction of the DP-570 emphasizes vibration reduction and stability. The player is equipped with a large bridge cover composed of three parts: a molded base, metal isolators, and an aluminum cover. This structure effectively reduces noise from the motor drive and disc rotation.
The laser reading module is mounted on butyl rubber vibration absorbers, carefully selected for their damping properties. This configuration ensures precise reading of the signal engraved on the disc by minimizing external and internal disturbances.
Reading Technology
At the heart of the DP-570 is a high-precision SA-CD/CD reading mechanism. This system benefits from high rigidity and a low center of gravity, significantly improving disc readability. The mechanism is mounted on a triple-layer base plate with exceptional vibration reduction properties, all supported by high-carbon cast iron isolators.
The reading mechanism uses distinct optical heads for CDs and SA-CDs, ensuring optimal reading for each format. The system is complemented by an RF signal processor and a digital servo processor that ensure precise audio data extraction.
Digital-to-Analog Conversion
The DP-570 uses a high-performance digital-to-analog converter (DAC), the ES9028PRO from ESS Technology. This DAC is implemented according to Accuphase’s MDS+ (Multiple Delta Sigma+) principle, employing four circuits in parallel per channel. This configuration significantly improves performance in terms of distortion, noise, and linearity.
The MDS+ conversion system achieves a signal-to-noise ratio of 120 dB, representing a 12% improvement over the previous model. Additionally, the total harmonic distortion (THD) rate is reduced by 30% compared to the DP-560, reaching a remarkably low level of 0.0006%.
Advanced Features
The DP-570 incorporates several advanced features to enhance the listening experience:
- Display of sampling frequency and quantization bit count for all input signals
- Digital output level control allowing adjustment up to -80 dB in 1 dB steps
- Programmable playlist function to customize track playback order
- Phase selector for balanced outputs
- Direct balanced filter with separate signal paths for line and balanced outputs
These features offer increased flexibility and allow users to optimize their listening experience according to their preferences.
Acoustic Performance
The DP-570 stands out for its exceptional acoustic performance. Its frequency response ranges from 0.5 Hz to 50 kHz (±3 dB), thus covering an auditory spectrum well beyond the capabilities of the human ear. The dynamic range of 117 dB and the channel separation of 117 dB contribute to a precise and detailed sound image.
The attention to noise and vibration reduction results in pure and faithful sound reproduction. The vibration analysis conducted by the development team minimized resonance points, ensuring that even the slightest vibrations generated inside the chassis do not affect playback accuracy.
Technical Specifications
Compatibility and Formats
- Compatible discs: SA-CD, Stereo CD
- Supported formats: WAV, FLAC, DSF, DSDIFF
Optical Characteristics
- Laser wavelength:
- SA-CD: 655 nm
- CD: 790 nm
Audio Characteristics
- Analog filter: 5-pole Butterworth
- Frequency response: 0.5 to 50,000 Hz (0, -3 dB)
- Output voltage: 2.5 V (balanced, unbalanced)
Digital-to-Analog Converter
- Type: 4 MDS+ / 4 MDS+
- Parallel circuits: 4
- Total harmonic distortion + Noise: 0.0006%
- Signal-to-noise ratio: 120 dB
- Dynamic range: 117 dB
Features
- Repeat playback: single track or entire disc
- Programmable playlist: up to 20 tracks
- Connectivity: high-speed link (HS-LINK), USB, optical, coaxial
- Output level adjustment: 0 dB to -80 dB in 1 dB steps
Physical Characteristics
- Dimensions: 465 × 151 × 393 mm
- Weight: 19.0 kg
- Finish:
- Brushed aluminum top panel
- Lacquered aluminum side panels
Included Accessories
- Remote control RC-140
- Audio cable AL-10
- USB installation CD
Frequently Asked Questions
Can the DP-570 be used as an external DAC for other digital sources?
Yes, the DP-570 has several digital inputs (HS-LINK, USB, optical, and coaxial) that allow it to be used as a digital-to-analog converter for other digital audio sources.
What is the difference between the DP-570 and its predecessor, the DP-560?
The DP-570 offers several improvements over the DP-560, including a 12% improved signal-to-noise ratio and a 30% reduction in total harmonic distortion. It also integrates the newer ES9028PRO DAC and offers extended compatibility with high-resolution audio formats.
Is the DP-570 compatible with DSD discs?
Yes, the DP-570 can play DSD discs as well as DSD files stored on compatible data media. It supports DSD up to 11.2896 MHz (DSD256) via its USB input.
Can I connect the DP-570 to an Accuphase voice equalizer?
Yes, the DP-570 allows for digital connection with Accuphase voice equalizers. You can use the transport outputs (HS-LINK, coaxial, or optical) to connect the equalizer, then reconnect it to the corresponding digital inputs of the DP-570.
How does the DP-570 handle high-resolution file playback?
The DP-570 can play high-resolution audio files stored on data discs (DVD-R/-RW/+R/+RW). It supports WAV, FLAC, DSF, and DSDIFF formats with resolutions up to 384 kHz / 32 bits for PCM and 5.6 MHz for DSD.
- Eco-contribution included in the sale price.
