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- Artikel-Nr.: SW10465
Aries Cerat | Kassandra Signature Limited Edition DAC MK2
We believe the Kassandra dac is currently one of the best audio sources available today and can only be matched by top analogue sources in timbre and musicality, but keeping well ahead in aspects of dynamic presentation and resolution.
While in the process of setting up and building the company, at the most early stages, the need of a true SOTA source was mandatory. You cannot claim to built speakers that aim to be the absolute best, top amplifiers designs and so on, if you do not have a true reference source. And I mean reference in the true context.
The source must be absolutely perfect
We began developing the Kassandra as I felt no source on the market would stand up to the task. There would always be a certain character, lack of dynamics, lack of musicality and true analog-like timbre and flow. And these shortcomings would project onto our efforts to create the best speaker-amplifier combination possible.
In the audio industry today, the market is in abandon with digital processors with a new dac presented every week, in a race of finding the best converter. A race of numbers, with THD of -110db, oversampling @ radio frequencies and 140db dynamic range. Yet, many audiophiles change dacs as soon as the next one arrives, without ever finding the one sounding "just" right.
In the process of development of our reference system, we were also searching for the best available converter. Yet no converter delivered the sound we expected, as a reference converter. Every dac presented an artificial feel to every recording, and almost all presented compressed dynamics and poor flow of music, easily noticeable with uncompressed recordings and ultra high sensitivity horn systems. So we began designing the best possible digital processor.
Delta sigma dacs are todays standard for digital processors. Not because they provide better audio quality, rather because of availability and ease of implementation of digital filters. Filters that became more and more complex, only because of the artefacts created with delta sigma modulation.
The Kassandra's prototype was developed very early, not as a commercially available design, but as a cost no object lab tool, my personal reference tool for speaker and amplifier development. The decision to be put it in production and to be commercially available was decided at a much later stage. We found since then, with many new converters launching daily with impressive specs on paper, they fall short of what we call analog sound. They always presented that electronic signature that gives digital reproduction a bad name.
As I like to say, my aim was making a true analog source, which would take
Ones and Zeros as input, and I feel we succeeded.
* 24 R2R converters per channel, complimentary current output (using the top grade AD1865N-K , 12 converters per bank, 24 per channel,48 in total)
* Eight discrete ultra-low-noise regulators (for the 4 converter banks)
*Extensive local decoupling,using tuned LC filters, 76 in number
*Overengineered power supplies,power input filters
*5 torroidal transformers,over 3Farad total system capacitance,wideband local decoupling
*Pseudo-battery system, for isolating all analog stages from the power grid.
* Transformer I/V conversion (custom wideband transformers,balanced current to SE voltage conversion)
* Internal Super-Clock (bypassable on the fly.Separate torroidal transformer,triple regulated supply)
*Transformer loaded super tube output stage (using the E280F tube. 5:1 step down transformer,double choke filtered supply)
*xenon gas rectifiers for the tube PSUs
*Super-capacitors used in tube analog stage. 100 times less ESR/ESL than any film or electrolytic capacitor.
- 30Vpp output @ 0db
- Balanced output(standard)
- USB input up to 24/384KHz
- Jitter attenuation down to femptosec level
- Output impendance ~40ohms (balanced output)
Dimensions : 2 chassis 540mmW X 530mmD X 165mmH each
Weight: 120kg total
|Verstärker Technologie:||Röhre Push Pull|
|Lautstärke Fernbedienung:||Mit Lautstärke Fernbedienung|