DP-600 - Accuphase
Contents
1. Upsampler x2 Volume Digital volume processing Reduces noise during volume processing Shifts the effective filter frequency upwards The DSD signal from the input is upsampled by a factor of 2 resulting in a sampling frequency of 5 6448 MHz 1 bit After volume processing the circuit performs D A conversion using a highly ingenious moving average filter principle In the DP 600 this involves five delay devices and six MDS type D A converters The signal is delayed shifted progressively by one clock cycle to produce six signals which are sent to separate D A converters for direct D A conversion The converted signals are then summed Since conversion errors are kept to an absolute minimum by the use of MDS type DACs the MDSD principle results in a 6 pole high cut filter with perfectly linear phase characteristics _ _ _ _ _ _ ____ Delay D Delay Device Delay Device Delay Device Delay Device 5 6448 MHz 1 bit Se Delayed by 1 clock cycle Moving Average Filter Circuit MDS D A Conversion System Current V Voltage Normal Phase Output DAC O Reverse Phase Output Airaphos SSS E Supplied remote commander a aw RC 100 i Eo A F aha aie die Gives2. access to various functions including direct play repeat pro Ine gram play input switching e ae and level control mii z 5 D E i a a e es oe aoe ane fee i So oa Sa b ie DAC WED Converter Current Summing Voltage Summing DAC output 3 100 120 140 Analog output dB N20 100 80 60 40 Linearity Digital input vs analog output 20 0 Digital Input dB Direct Balanced Filter With Separate Balanced Unbalanced Circuitry Features and Functions of Digital Processor Section E MDSD Multiple Double Speed DSD implements innovative digital signal processing E MDS D A converter with six DACs driven in parallel E Digital level control allows adjustment down to 80 dB E Separate transport and processor sections with digital input and output connectors for HS Link coaxial and optical connections E Power on play feature allows automatic playback E Balanced and unbalanced analog outputs 1 set each E Side panels with elegant persimmons wood finish E High Carbon cast iron insulator feet with superior damping characteristics further enhance sound quality The output of any D A converter contains so called aliasing noise in the very high frequency range During CD playback an analog filter designed to remove that noise is therefore
3. MDSD SA CD PLAYER DP 600 High grade SA CD CD drive Innovative MDSD digital signal processing MDS type D A converter using six parallel devices Direct Balanced Filter with totally separate balanced and unbalanced signal paths HS Link digital interface Transport outputs and digital inputs allow insertion of DG 48 into signal path for sound field correction Balanced and unbalanced analog outputs ep Ge SUPER AUDIO CD The reference level separate type combo DP 800 DC 801 and the integrated DP 700 with their exclusive mechanism developed in house by Accuphase have garnered high praise and acclaim the world over The new DP 600 is positioned as a companion model to the DP 700 benefiting from its sophisticated know how but it is also a high end integrated SA CD player in its own right Extensive listening tests were conducted to ensure optimum reproduction quality As with all Accuphase players so far a conscious decision was made not to support multi channel formats but rather focus on obtaining the ultimate in musical fidelity from two channel SA CD music sources The high grade SA CD drive mechanism in the DP 600 is the ultimate tool for extracting the information on SA CD discs one hundred percent It not only keeps internal vibrations of rotating parts to a minimum but is also highly impervious to external vibrations This ensures that the digital signal remains in a highly pure and accurate state A ded
4. OPTICAL Format JEITA CP 1212 compliant Digital processor section Digital inputs HS LINK Connector type RJ 45 E Rear Panel Suitable cable Dedicated HS Link cable COAXIAL Format IEC 60958 compliant OPTICAL Format JEITA CP 1212 compliant Sampling frequency 32 kHz 44 1 kHz 48 kHz 88 2 kHz 96 kHz 16 to 24 bits 2 channel PCM Only via HS Link 176 4 kHz 192 kHz 24 bits 2 channel PCM 2 8224 MHz 1 bit 2 channel DSD D A converter MDSD principle DSD signal MDS principle PCM signal Frequency response 0 7 50 000 Hz 0 3 0 dB Total harmonic distortion noise 0 0008 20 to 20 000 Hz Signal to noise ratio 114 dB Dynamic range 110 dB 24 bit input low pass filter off Channel separation 108 dB 20 to 20 000 Hz Output voltage and impedance BALANCED 2 5 V 50 ohms balanced XLR type Input indicator i 4 P1 BACK NEXT track search buttons UNBALANCED 2 5 V 50 ohms RCA phono jacks TRANSPORT D E STOP button Output level control 0 0 dB to 80 0 dB digital HS LINK COAXIAL OPTICAL Digital inputs HS LINK COAXIAL OPTICAL Conc Track number indicator Transport outputs HS LINK COAXIAL OPTICAL Index indicator Analog outputs Power requirements AC120 V 230 V Voltage as indicated on rear panel O Time indicator Balanced output connectors 50 60 Hz Output level indicator Ground Inverted Non inverted Power consumption 30 W Repeat indicator
5. Unbalanced output connectors Max dimensions Width 465 mm 18 5 16 Program indicator AC power connector Height 150 mm 5 7 8 Power switch Depth 393 mm 15 1 2 SA CDICD selector button gt Mass 18 5 kg 40 8 Ibs net Input selector button m ES 25 0 kg 55 1 Ibs in shipping carton Disc tray oA a ble with Dl e Supplied Remote Commander RC 100 4 Disc tray open close button udio cable with plugs 1 meter Remote control principle Infrared pulse P gt Play button e Remote Commander RC 100 Power supply Two IEC R03 size AAA batteries Il Pause button e Cleaning cloth Max dimensions 56 mm x 175 mm x 26mm d Mass 155 g including batteries Remarks This product is available in versions for 120 230 V AC Make sure that the voltage shown on the rear panel matches the AC line voltage in your area The shape of the AC inlet and plug of the supplied power cord depends on the voltage rating and destination country ccupnase ACCUPHASE LABORATORY INC e Specifications and design subject to change without notice for improvements http www accuphase com KO805Y PRINTED IN JAPAN 851 0181 00 AD1
6. always required The filter circuitry in the DP 600 uses 5 pole Butterworth analog filters with extremely flat frequency response in the passband In order to prevent unwanted interaction completely separate filters are provided for the balanced and unbalanced signal paths Adirect connection from the balancing circuit at the output of the D Aconverter to the filter circuitry and symmetrical configuration ensures that the output impedance is also identical This provides ideal transmission conditions for the high quality MDS output E Assembly with six MDS D A converters 5 pole analog filter balanced unbalanced analog output circuitry power supply Transport outputs digital inputs assembly 4 5 Pole circuitry etc MDS _ Butterworth D A conversion LPF System Unbalanced Digital Inputs Analog 5 Pole A gt DAC Butterworth Outputs LPF 6 Butterworth LPF Balanced x High quality parts DP 600 Guaranteed Specifications E Front Panel Guaranteed specifications are measured according to the JEITA standard CP 2402A Measurement disc PHILIPS 3122 783 00632 Transport section Compatible disc formats 2 channel Super Audio CD CD 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
7. et of HS Link coaxial and optical connectors Features and Functions of Transport Section E High grade SA CD CD drive Highly rigid and precise construction with sturdy heavyweight chassis to absorb external vibrations Traverse Mechanism with floating design Massive bridge cover Non resonant design and low center of gravity further reduce vibrations High quality disc tray extruded from an aluminum block plus super quiet smooth disc loading mechanism MSA CD CD transport outputs ultra pure digital signal High grade SA CD CD drive E Single lens twin pickup high speed access mechanism a Wits Wis acts mechanism E Support for text data display MAccuphase s proprietary digital audio interface HS s Mechanism Link carries both SA CD and base CD signal Disc tray Viscous dampers DG 48 connection example The DG 48 can be connected between the transport outputs and digital inputs of the DP 600 using HS Link coaxial or optical connection This allows sound field compensation of the signal from the CD transport in the digital domain HS Link Supports transmission of both SA CD and CD signals Coaxial optical fiber CD signals only DIGITAL INPUTS TRANSPORT OUTPUTS DIGITAL IN DIGITAL OUT HS Link cable DP 600 Accuphase Exclusive Digital Interface HS Link High Speed Link ma Coaxial Transport Opu HS Link is an ultra high quality digital audio in
8. icated DSP chip controls the digital servo allowing the digital signal encoded on the SA CD in DSD Direct Stream Digital format to be processed with utmost accuracy The high speed access mechanism with its single lens twin laser diode combines optimum precision with lightning swift operation In the digital processor section ground breaking MDSD Multiple Double Speed DSD technology is used with an ultra high speed FPGA Field Programmable Gate Array and multiple DACs driven in parallel to handle the delayed DSD signal After D A conversion summation of the multiple data results in an ingenious moving average filter circuit that implements straight D A conversion of the DSD signal An important characteristic of MDSD is the use of MDS D Aconverters which keep conversion errors to an absolute minimum The MDSD circuit acts as a high cut filter that virtually eliminates high frequency quantization noise SA CD Digital Optical Signal Head Processor d CD RF Optical Signal Hea Processor ena Driver Receiver Digital Audio High end integrated SA CD CD player High grade SA CD CD drive combined with exquisite disc tray and ultra quiet disc loading mechanism ensures smooth operation Innovative MDSD Multiple Double Speed DSD digital signal processing circuitry is configured as moving average filter for straight D A conversion Completely separate configuration of transport and processor sections each equipped with a s
9. terface developed by Accuphase using latest digital signal transmission technology It supports send receive interf Coaxial nierace Transmitter Encoder A Master Infrared Control Receiver Computer key i di From Remote Commander MDSD Multiple Double Speed DSD System Motor Digital amp Servo SA CD CD Driver Processor Optical 5 Pole Butterworth Low Pass Filter Unbalanced verification for copyright protection The LVDS Low Voltage Differential Signaling principle allows a single dedicated HS Link cable to transmit all audio data with utmost fidelity including 2 8224 MHz 1 bit and 192 kHz 24 bit signals TIA EIA 644 LVDS Digital A Driver Receiver HS Link SAE audio gt an Left Signal 5 Pole Analog RJ 45 Butterworth Low Pass Filter Outputs Connector Security HS Link mp HS Link Control Decoder Balanced TIA EIA 568A CAT 5 STRAIGHT CABLE Digital Coaxial Interface Pea Coaxial O 9 Decoder 5 Pole p Butterworth O HS Link Digital Low Pass Filter i Decoder Audio Unbalanced Signal Optical Right A tee Receiver 5 Pole Analog onnector DP 600 Block Diagram Butterworth Low Pass Filter Outputs Security Control TIA EIA 644 LVDS Driver Receiver HS Link Block Diagram Innovative Digital Signal Processing MDSD Multiple Double Speed DSD 2 822 MHz 1 bit 5 6448 MHz 1 bit Digital Input me
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