Cyrus DAC X Digital Analogue Converter - Quartz

The DAC X is a multi-input digital to analogue decoder with dual mono 24-bit resolution with 192 kHz up-sampling, it is equipped with four co-axial and two optical digital inputs. It has an ultra-low jitter reference clock, wide mode response for non-Group 1 sources. Programmable input naming library, digital out and line out RCA.
Many Cyrus owners recollect the impact that the hi-fi industry felt a decade ago when Cyrus launched the DiscMaster/ DacMaster/ PSX-R combination. The combination set new performance standards for CD replay, featuring leading edge digital technology presented in a unique 4-box format.
The brief for the DAC X was to bring this 4-box formula up to date by taking the best DAC technology available today and building a class-leading stereo digital decoder to partner the CD Xt SE and a pair of PSX-Rs.

Features

High-end DAC technology - Full 24 bit resolution with 192 k upsampling.
True balanced topology - Fully balanced topology throughout digital and analogue stages
High accuracy dual-mode master clock
Programmable input names
Digital Output - For convenient wiring to a digital recorder or surround decoder
Optically isolated digital control system - Zero digital influence on the music signal
Extensive use of Star-earthing - Ability to resolve to very low signal levels
PSX-R upgradeability - Enhancing performance by further isolation of power supply
MC-Bus™ System Bus - Integrated system control with the Cyrus range

D/A Conversion - At the heart of a quality D/A converter is the circuit that converts the digital source to an analogue signal. Careful design of this circuit is essential to retrieve the true dynamics of the source material and to minimise undesirable artifacts such as noise and distortion. The DAC X achieves this with a two stage upsampling design where all sources are initially upsampled to 192k
before analogue conversion by quad high-precision 24-bit converters operating in a fully balanced configuration. The technical specifications endorse the quality of this stage with class-leading performance for THD and noise. The elevated 192 k sample rate permits our designers to use far less aggressive analogue filtering techniques to remove undesirable out-of-band digital noise.
Jitter Reduction - Low jitter is an essential requirement for the clocks and data signals passed within a D/A converter. In the DAC X the sophisticated re-clocking circuit measures the precision of incoming digital signals to determine the quality of the input source. High accuracy sources such as the CDXt SE CD transport are digitally re-clocked by a close tolerance circuit with triple quartz references. For signals from low accuracy sources such as personal computers the circuit automatically relaxes the re-clocking precision to ensure reliable signal recovery.
Sample Rate Handling - The DAC X is prepared for the wide range of sample rates available from today’s digital sources and beyond. Group 1 close tolerance performance is available for 32k, 44.1k, 48k, 64k, 88.2k, 96k, 128k, 176.4k, 192k source material. For sources outside of Group 1 requirements, any sample rate in the range 32k – 192k is accepted. Non-stereo waveforms (surround sound etc) are identified and suppressed to avoid undesirable digital noise.
Digital output - An optical digital output provides a useful digital feed to send the signal from the selected source to digital recording devices or to a multi-channel surround sound decoder.
Power supplies -The DAC X power supply is a traditionally built linear design, with an oversize toroidal power transformer including twin windings dedicated to the digital and analogue sections and entirely separate power regulation for the DAC and analogue filter sections. Two-stage regulation is used for critical stages with remote shunt regulators located within the heart of the audio circuitry.
Control and display - The large format display provides a clear indication of the operational status of the DAC X, while an interactive menu system permits easy identification of connected inputs and enables different presentation options for the display, including a large-format input display and a 3-line display including decoding status. The control section is separately powered and totally isolated
electrically from both the DAC and filter stages through a bank of optical devices, ensuring that no digital noise currents can enter the audio circuitry.
Programmable remote control compatibility - The DAC X is remote prepared with a command-set enabling commands such as standby control and input select that can be programmed into a learning handset which has RC5 capability.
Input naming - Each input can be re-named from a library of 28 names or de-selected if unused. Once set to match a system, the DAC X input selector will scroll through only the available inputs. Where inputs have been named CD, TU or DVD, the DAC X will automatically send power control commands to these Cyrus sources and power amplifiers through MC-Bus.
MC-Bus identity - The Cyrus MC-Bus system integrates and unifies control features within a system of Cyrus components. The DAC X includes MC-Bus connectivity and, through the menu system, can be programmed to respond to different MC-Bus commands. This feature enables a DAC X to be connected to the CD, TU, AV or AU inputs of a Cyrus amplifier and switch on when the appropriate input is selected.

Input Voltage: 500 mV pk-pk
Input Impedance: 75 Ω
Signal to Noise Ratio: 115 dBA
Total Harmonic Distortion + Noise: 0.002%
Output Voltage: 2.3 V (Fixed); 4.6 V (Balanced)
Output Impedance: 47 Ω
Power Consumption: 14 W (Normal); 12 W (Standby)
Dimensions: 215 (W) x 365 (D) x 75 (H) mm
Weight: 3.8 kg
Material: Die cast chassis

Turnaround

Orders will usually dispatched within 2 working days of receiving cleared payment.

Shipping Rates

We calculate your shipping rate based on the total weight of your items and your delivery address. Standard shipping to the UK Mainland (excludes Northern Ireland, Isle of Man, Channel Islands) is free, except where specifically indicated. Don't worry, you'll always see the final shipping charge displayed before you reach the payment step (on the checkout page).

Carriers

We despatch the bulk of our UK mainland items on a 24 hour service.  Non-Mainland locations – Isle of Man, Isle of Wight, the Scilly Isles, the Scottish highlands and Islands, the Channel Islands and Northern Ireland may take a day or so longer. Smaller items are delivered using Royal Mail 24 or special delivery. Larger items are delivered using a courier service such as UPS and occasionally by a Pallet service.

Order Tracking

If a tracking # is provided by the carrier, we will update your order with the tracking information. Please note that some orders will not have tracking numbers.