ORACLE AUDIO Technologies Inc.

The electronic components and the CD drive laser mechanism are similar to those in our famous CD 2000.

We have created a new design with an innovation vibration absorption system. Experience the perfection !!! You'll think you


Philosophy

It is our belief that achieving simplicity in design is a combination of knowledge and common sense. A properly designed device creates its own form, one that reflects the beauty of its function. True artistry combines these elements by means of the whole being greater than the sum of its parts.

Oracle CD Players are to be praised as much for their appearance as their performance.

Both the CD Drive and the Player follow this now familiar design concept.

All the major components have been selected for one, more or all of the following criteria
- sonic excellence -
- reliability -
- upgradability -
- aesthetics -

Basically, the electronic parts are very similar to our famous CD 2000. We created a brand new design, use a brand new exceptional suspension system. The result is a totally perfect CD player....


Engineering Features

ORACLE CD - PLAYER ( with integrated d/a converter )

The analogue stage plays a vital role in high performance of the Oracle CD player , it filters the quantification residues , it eliminates left over pollution from the supplies in a common mode and the electrical rejections of the different internal circuitry of the CD engine drive board.The fine tuning of our digital to analogue converter board has resulted from a 3 years intensive research program before reaching our goal. The goal was to eliminate the need for, and use of internal pre-amplification circuitry needless to say we succeeded.

Digital to Analogue Converter Board Workload Specifications
Balanced input
12 dB filtering without looping
No global feedback diagram
No continuous control
No solid current generator
Maximum bandwidth possible

Digital to Analogue Converter Board Specifications
430 khz square wave without filtering cells
0.1 micro second rise time without any phase correction cell
Balanced input-- Unbalanced output through RCA connectors
Large input impedance ( F.E.T. )
Very powerful and sturdy output transistors, 25 W @ 1 Amp/120volts
Low noise transistors for each tension stage
Differential cascade stage input with a filtering cell to eliminate the need additional buffer stages.


ORACLE CD - TRANSPORT

THE POWER SUPPLY STAGE

Our special power supply section is designed in such a way that each major element will have its own dedicated primary and secondary electrical supply.Each transformer is encapsulated in a special epoxy to further reduce vibration.There is a dedicated transformer for the drive engine and command functions and a second dedicated to the digital to analogue converter. The line signal is filtered prior to arriving at an EI transformer that is immune to electrical pollution. Both primary and secondary supplies are magnetically shielded by a galvanized screen thereby eliminating any pollution in this domain. The main power supply housing also provides efficient shielding against radiated pollutants. The secondary supplies to the toroidal transformer used by thedigital to analogue converter are individually rectified through soft recovery rectifier circuit and capacitors in a PI network thus increasing filtering efficiency. This means all electrical signals going to the player are completely free from external pollution.

THE COMMAND MODULE

Only DC signals enter the command module where all necessery voltage regulations are located.This command center controls and directs the signal to each critical element. Also located here are the fluorescent display,infra-red receiver for the remote control and the mechanically operated function selector switches. This separate command module also provides further very effective shielding due to its complete isolation from other keys elements.

 

[제품 사양]

Single ended SP/DIF, digital audio signal Format : BNC
Load impedance : 75 ohms
Output impedance : 75 ohms
Output level : 0,5 volts, peak to peak @ 75 ohms load
RCA (Cinch.) analog audio signal Format : Cardas Rhodium plated RCA connectors
Load impedance : 5k ohms minimum, 50k ohms maximum
Output impedance : lower than 100 ohms
Output level : 2,4 volts effective
Conversion : Crystal CS4390, 24-Bit
Type : Delta - Sigma
Signal to noise ratio : 115 dB
Dynamic Range : 106 dB
Oversampling : 128X