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Digital inputs:1x AES/EBU, 2x S/PDIF, 2x NAGRA-LINK, 1x Optical, 1x Audio USB (UCA2)
Analog outputs:1 stereo RCA
1 stereo XLR
Output level:1.5 VRMS
Output impedance:< 200 ohms
Analog output Noise level:-128 dBr @ 1 kHz 1.5 V
Unweighted
Distortion:< 0.02 % @ -20 dBfs
< 0.005 % (H2 filtered) @ -3 dBfs
Frequency Response:5 Hz – 40 kHz +0 / -1 dB
Crosstalk:> 110 dB @ 1 kHz
> 100 dB @ 20 kHz
Inter-channel phase< 0.05 ° @ 1 kHz
< 0.3 ° @ 20 kHz
< 0.5 ° @ 50 kHz
Remote automation:Input 1x 3.5mm (1/8”) stereo jack socket – Input command
Output 4x 3.5mm (1/8”) stereo jack socket – Output switching by relay
Home automation:1x SUB-D9 connector – RS232 115200 bits/s, 8 data bits, no parity, 1 stop bit
Mains power:100V~, 115V~, 120V~, 127V~, 230V~ or 240V~
NOT ADJUSTABLE – ±10%, 50-60Hz
Power consumption:170W max
Mains fuse:S230V~ to 240V~ -> T 2A L (FST 5x20mm 250V)
100V~ to 127V~ -> T 3.15A L (FST 5x20mm 250V)
Operating temperature:+15°C to +35°C (+59°F to +95°F) – moderate climate
Operating environment:Indoor only – IP30
Dimensions:Power supply chassis (HD PSU) 433x436x121 mm (17.05×17.17×4.76 in)
Audio device chassis 433x436x121 mm (17.05×17.17×4.76 in)
Weight:Power supply chassis (HD PSU) 16.5 kg (36.38 lb)
Audio device chassis 13.5 kg (29.77 lb)
Specifications may change without notice
Back in 1992, Nagra was the first audio manufacturer to release a high-definition digital
recorder the Nagra D (24 bit, 96 kHz). Originally launched in 2018, the Nagra HD DAC X
drew upon this innovative technology.
The release of the Nagra Reference turntable and cartridge, followed by the Nagra HD
PHONO, set new standards for analog reproduction in the same way as our own reel-to-reel
player, the marvelous Nagra IV-S, had when it was launched. Now it was time for us to focus
once again on the digital world and benefit from what we had learned with the new Nagra
Streamer.
Our intensive research and painstaking extensive listening sessions resulted in essential
component changes in the audio unit, including custom made capacitors. We created a new
generation of high voltage power supplies inside the audio signal unit (generating the
200 V DC grid tension). For the power supplies, we added supercap capacity. The Reference
DAC was given dual chassis power supplies, one dedicated to the audio signal section and
one dedicated to the digital section, as well as all controls and relay switching, including
home automation*.
* Although the Reference PREAMP (as well as the future DAC and PHONO) can run on a
single power supply, the sound is more spectacular and life-like with two PSUs. Starting
with one PSU will give customers an easy upgrade path and allow them to add a second
one for unrivaled performance at some time in the future.
The Reference DAC features new mechanical damping with the addition of a phenolic layer
inside the top cover and a Reference medallion above the modulometer clearly identifies it
as part of the Reference family of products.
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