Overview
The DP-550 features an exclusive mechanism developed in-house by Accuphase and benefits in many ways from the advanced technology of the flagship models. It is a high-performance player that represents the fruits of intensive research and many extended listening sessions.
The digital processor section of the DP-550 features an innovative method called MDS+ (Multiple Delta Sigma+) developed by Accuphase. The D/A converters in the DP-550 are the latest Hyperstream ™ types (ES9008 from ESS Technology Inc.).
Specs
Transport section
Compatible disc formats: 2-channel Super Audio CD; CD; DSD disc (DSF file format)
Data read principle: Non-contact optical pickup
Laser diode wavelength: SA-CD: 650 nm; CD: 780 nm
Transport section outputs:
HS-LINK: Connector type: RJ-45; Suitable cable: Dedicated HS-LINK cable
COAXIAL: Format: IEC 60958 compliant
OPTICAL: Format: JEITA CP-1212 compliant
Digital processor section
Digital inputs:
HS-LINK Connector type: RJ-45; Suitable cable: Dedicated HS-LINK cable
COAXIAL Format: IEC 60958 compliant
OPTICAL Format: JEITA CP-1212 compliant
USB Format: USB 2.0 Hi-Speed (480 Mbps compliant)
Sampling frequency:
HS-LINK: 32 kHz to 192 kHz/24-bit (2-channel PCM); 2.8224 MHz/1-bit (2-channel DSD) USB, COAXIAL
32 kHz to 192 kHz/24-bit (2-channel PCM) OPTICAL
32 kHz to 96 kHz/24-bit (2-channel PCM)
D/A converter: 4 MDS+ principle
Frequency response: 0.7 – 50,000 Hz +0, -3.0 dB
Total harmonic distortion: 0.0007% (20 to 20,000 Hz)
Signal-to-noise ratio: 118 dB
Dynamic range: 115 dB (24-bit input, low-pass filter off)
Channel separation: 108 dB (20 to 20,000 Hz)
Output voltage: BALANCED: 2.5 V 50 ohms, balanced XLR type and impedance LINE: 2.5 V 50 ohms, RCA phono jacks
Output level control: 0.0 dB to -80.0 dB, 1-dB steps (digital)
General
Power requirements: AC120 V/220 V/230 V (Voltage as indicated on rear panel) ; 50/60 Hz
Power consumption: 23 W, standby: 0.5 W