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Product Information

  CD-77
  Abbingdon Music Research > Reference Class Compact Disk Processor

 

 

Reference Class Compact Disk Processor

AMR's design brief was simple in essence but complex in execution: "to match and exceed the performance of the new Super Audio CD®." To achieve this lofty objective, the CD-77 is able to lay claim to a unique approach in design and manufacture.

To begin, the proprietary top-loading transport mechanism is a painstaking amalgamation of genuine Sony and Philips components best suited to the application.

At the heart, the Digital to Analogue Converter is the "King of the Multibit" ¨C the Philips TDA1541A chipset, which is accompanied with a leading-edge circuit incorporating the latest CPLD (Complex Programmable Logic Device) and DSP (Digital Signal Processing) devices. Combined with a revolutionary analogue stage using pure New Old Stock valves, the musical performance of the CD-77 must be heard to be believed.

The CD-77 is unrelenting in its maximisation of the sonic performance and pushes the performance of CD to a new level that seriously questions the ability of Super Audio CD®... It is one of the select few that bridges the performance gap between compact disk and vinyl or analogue master tapes.

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Awards

Tech Notes/White Papers

User Manual (PDF)

Specifications
Operation modes • Direct Master I; no digital or analogue filter
• Direct Master II; no digital filter, anti-sin(x)/(x) analogue filter
• Oversampling 2X
• Oversampling 4X
• Upsampling 96KHz
• Upsampling 192KHz
Compact Disk Drive Custom, Toploading
Digital Audio Inputs 1 x USB interface
Analog Outputs 1 X RCA; 1 X XLR per Channel
Thermionic Electron Valves • ECC81/12AT7 (NOS): amplification stage

• 5687/6900 (NOS): output buffer stage

• EZ80/6V4 (NOS): rectification stage
Output voltage (Digital Full Scale) >2V
Output Impedance appx. 100 Ohm
Load Impedance > 10,000 Ohm
Frequency Response 20Hz to 20 kHz +0.0, -0.5dB
Signal-to-noise ratio 'A' Weighted > 100 dB
Total Harmonic Dist. + Noise (THD +N) <0.3%
Dynamic range >90 dB
Channel separation >100 dB
Power consumption Standby: 45 W
Power on: 90W
Rated voltage 90V-135V & 190V-260V AC
Colour Champagne or Titanium
Dimensions 17.9in W by 6.2in H by 18.3in D
46cm W by 16cm H by 47cm D
Weight

CD Processor: 62 lbs/28 kg
Shipped: 108 lbs/ 49 kg

Information and specifications subject to change without notices

For more information about this product, please refer to the manufacturer's website.

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