Accuphase DP-60 CD-played

 Compact Disc palyer with; 8-time Oversampling Digital Filter; 18-bit D/A Converter; precisely Adjusted One by One, and Complete Separation Between the Digital and Analog Sections via the "Very High Speed Optoisolators"

Individually Adjust 18-bit D/A Converters

Independent 20-bit Eight-Time Oversampling Filters for Both left and Right Channels

3-pole GIC Butterworth Active Filter having Specially Selected Elements

Digital Circuitry and Analog  Circuitry are Completely Isolated to prevent Degradation of Sound Quality by High-Frequency Noise

Selection Time of 1 Second or less is Achieved by Employing a Linear Motor laser Pickup and 8-bit Microprocessor

The Mechanism is Mounted on a Diecast Aluminium Frame Floated from the Chassis so that the Effects of Vibration and Resonance on the Sound Quality are Virtually Eliminated.

Specially Noise Shaper Reduces the Noise in the Audio Frequency Band by Feeding Back the Rounding Errors Generated by Each Digital Filter to The Next data

Digital level Control that Can be Adjusted by Remote Commander. There Output Systems; two

Digital deemphasis Circuit with Ideal Characteristics of 0,001 dB Deviation and 1,5 degree Phase

DC Directly Coupled Output Stage with a Buffer Amplifier with 0 dB Gain

Unbalanced and one balanced

Wideband Optical Fiber and 75-Ω Coaxial Cables for Output

Power-ON play Function that Starts Playback from Specified Music

Simple, Yet Elegant Appearance, Creating a Refined Mood

 

Inside the chassis of the DP-60 , digital circuitry, such as the player, is electrically isolated from the analog circuitry by ultra high-speed, optoisolatora with a transmission capacity of 40 Mbits/second. In addition, special technology protects the internal circuitry from electromagnetic and static e;ectricity interference,, thus preventing the sound quality from being degraded by high-frequency noise. Carefully selected, top-grade 18-bit ICs are adopted for the D/A converters, each of which is precisely adjusted on the production line to achieve upper-limit performance. A 20-bit eight-time oversampling filter, the most advanced digital filter, is provided for both the left and the right channels. These digital filters are independent of each other and achieve an unnecessary bandpass attenuation of -110 dB and a bandpass ripple of ±0,00005 dB.

 

The DP-60 can boast a lot more of Accuphase's state-of-the-art. Technology though,, suh as a noise shaper that reduces re-quantized noise to near the theoretical lower limit, a 3-pole GIC lowpass filter with excellent amplitude and phase characteristics, a high precision digital deemphasis circuit with a deviation of ±0,001 dB and digital remote control that can adjust the gain up to -24 dB in 1 dB units.

Another feature of DP-60 is its rigid construction and high resistance to vibration and shock. The linear motor laser pickup is securely mounted on a diecast aluminium frame and the mechanism itself is fixed to a metal chassis of 1,6 mm thick, so that the vibration generated by the motor is almost completely absorbed. This construction brings the total weight of DP-60 to 14,5 kg, making it one of the heaviest CD player available.

The custom-built 8-bit microprocessor in the DP-60 gives remarkably short access time of 1 second or less.

The side panels of the Dp-60 use natural persimon board, following the design of the series of Accuphase models, with only the necessary switches on the front panel for ease of operation. Despite this implicity of appearance, the DP-60 has many convenient functions, such as "power On play" that automatically starts playback when the power is turned on, and a function to display and plaay back in units of one frame 91/75 second.

 

Specifications

Type:  CD digital single player

Format:  CD standard format

Number of Quantizations :  16 nitss

Sampling Frequency :  44,1 kHz

Error Correction method :  CIRC

Number of Channel :  two

Spindle Speed :  200 to 500 rpm

Secan velocity :  1,2 to 1,4 m/s

Data read:  Non-contact optical pickup (semiconductor laser pickup)

Laser:  GaAlAs 9double heterodyne diode)

Frequency Characteristics:  4 Hz to 20 kHz ±0,3 dB

D/A Converter:  Ladder resistor type, 18 bits

Digital Filter:  Eight-time oversampling , Noise shaper function, Digital deemphasis function, Deviation:  ±0,001 dB

Total Harmonic Distortion:  0,002% (20 to 20,000 Hz)

Signal-to-Noise Ratio:  114 dB

Dynamic range:  98 dB

Channel Separation:  106 dB

Output Voltage/Impedance

Balanced ;  2,5 V / 50 Ω (25 Ω/25 Ω), balanced XLR type

Unbalanced :  2,5 V / 50 Ω, RCA phono jack

Digital Level Control :  0 to -24 dB, 1 dB steps

Digital Output Format Level

Format :  Digital audio interference

Optical Output/Wavelength:  -21 to -15 dBm (EIAJ) / 660nm

Coaxial :  0,5 Vp-p at 75 Ω

Semiconductors:  15 Transistors; 46 ICs; 26 Diodes

Power Requirements:  100, 117, 220, 240 V 50/60 Hz

Power Consumption: 20 W

Dimensions (W x H x D):  475 x 115 x 325 mm (18-11/16" x 4-1/2" x 12-13/16")

Weight: 14,5 kg (32 lbs)