The Nagra CLASSIC DAC derives most of its technology from the Nagra HD DAC which has so impressed audiophiles throughout the world, but has been developed to integrate fully with the CLASSIC range and retail at a lower price point.
With the identical digital input and conversion boards as the Nagra HD DAC, it is only in the analog stage that the Nagra CLASSIC DAC differs. It produces the same “analog” sound as its bigger brother which is considered to be the standard in the D/A market by which all other machines are judged.
Identical digital input board and conversion module as the Nagra HD DAC, making use of the most advanced conversion techniques available today. The converter comes from a joint-venture with Andreas Koch, AKDesign, the pioneering engineer in the DSD (Direct Stream Digital) format, used in professional music studios. The circuits of the Nagra CLASSIC DAC use the DSD 2x version of the format, operating at a level 128 times superior to that of traditional CD and twice that of SACD .
Sampling frequency up to 5.6 MHz. The internal calculations use 72 bit precision. This method produces a signal with such quality that the steep-slope input filters on the analog section can be eliminated. The result is that the harmonics and transients are perfectly maintained allowing the music to conserve its natural depth and essence.
9 FETs design topology emulate the sound of a tube providing a particularly warm and musical sound. Proprietary Nagra USB input handling signals up to DXD (384 kHz 32 bits) and DSD 2x, compatible with both PC and Mac computers.
Output section based on a class A discrete transistor topology. It includes no less than 9 matched transistors, of military and high-end origins, per channel. Signal-to-noise ratio of the output stage boasting an impressive 145 dB (not weighted). A number rarely reached by any competing product at any price level. Simplified output stage compared to the Nagra HD DAC with no volume control or headphone circuit.
Carefully designed, built-in mains power supply including no less than 25 dedicated internal power supplies. In typical Nagra fashion, each stage is carefully decoupled to ensure the best performance. Nonetheless, the power supply can be further improved by the use of the Nagra MPS full-chassis power supply that connects to the Nagra CLASSIC DAC though a 12 V DC Lemo connector.
DESIGN and aesthetics
Front panel with LCD screen so that each input can be named. All functions are accessible via the included remote control. Traditional Nagra Modulometer indicating the input level of the digital signal (one needle per channel). 0 dB FS corresponds to the maximum level on the scale. Same dimensions as the other elements in the Nagra CLASSIC range allowing for neat and aesthetic stacking in the building of a complete Nagra system from various components.
|Internal processing:||5.6 MHz / 6.2 MHz 72 bits|
|Compatible digital formats:||PCM 24 bits up to 384 kHz, DXD, DSD x 2|
|Frequency response:||10Hz to 110 kHz (+0.1 / -3 dB)|
|Crosstalk:||> 100 dB|
|Interchannel phase:||<0.5° at 20 kHz|
|Noise level:||-128 dBr (linear)|
|Distortion:||< 0.02% (at -20dB FS)|
|Inputs:||2 x S/PDIF, 1 AES/EBU, 1 Optical, 1 Audio USB (mode 2)|
|Analog outputs:||1 stereo on RCA connectors, 1 stereo XLR (Unbalanced)|
|Dimensions:||280 x 350 x 76mm (12 x 13.7 x 3 inches)|
|Weight:||3.8 Kg (6.6 lbs)|
|Power consumption:||On 15 W, Standby <1W|
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