Helene DAC
The Heléne is a bit-perfect ladder DAC and uses NO data processing, upsampling or oversampling – all data is converted at their native sample rate and bit rate.
Taking technology we pioneered in the Kassandra Series, the converter banks are implemented around a matrix of eight R2R converters per channel, running in parallel. The two independent banks use eight R2R matrixes from the Analog Devices AD1865N-K in current mode.
These are driven by our custom logic that handles the syncronisation, data and work buses. Our Super Clock technology used in our bigger models is also standard in the Heléne DAC, negating the use and need of an external aftermarket Word Clock.
The USB input is double Reclocked, as are the digital S/PDIF and AES inputs using the internal Super Clocks of the converter. The digital input Reclocker is also bypassable on the fly.
Technical Specifications
DIGITAL SECTION
| IC Chip Array: | 8 R2R converters per channel, complimentary current output using the top grade Analogue Devices AD1865N-K with 4 converters per bank, 8 per channel |
| Regulators: | Four discrete ultra-low-noise regulators for the 4 converter banks |
| PSU: | Over engineered power supply, power input filters. |
| Current to Voltage Conversion: | Transformer I/V conversion with custom wideband transformers, balanced current to single ended voltage conversion. |
| Additional Clock: | Internal Super-Clock by-passable on the fly, triple regulated supply |
INPUT & OUTPUT SECTION
| PSU: | Over engineered power supplies, power input filters, large toroid transformer & capacitor banks |
| Gain Stage: | Transformer loaded super tube output stage using the E280F tube. 5:1 step down transformer & double choke filtered supply |
| Output: | 30Vpp output @ 0db 10Vrms |
| Output: | 2 x RCA, 2 x Balanced. True Balanced output standard. Floating RCA output switchable (ground loop resolver) |
| Output Impedance: | 50 ohms (balanced and SE output) |
| USB input: | Data rates up to 24/384KHz |
| Jitter attenuation: | Down to femtosec level |
| Dimensions: | 500mm W x 430mm D x 165mm H |
| Weight: | 40kg |
Hi-End Audio / NOS parts / Valve Amplifiers / Valve R-2R DAC / Made to Order
If you are looking for Modern iteration of vintage technology, Aries Cerat is the ultimate brand.
As a hardcore new-old-stock (NOS) and vintage valve collector, Aries Cerat had created modern valve amplifier with touches of vintage elegance.
