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AUDIO-GD NFB-27.77 DAC / Preamp / Headphone Amplifier DSD 2xES9038Pro TCXO
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Audio-GD NFB-27.77 TCXO HDMI
DAC / Headphone Preamplifier / Amplifier 
A versatile and efficient HiFi device ...
The DAC NFB-27.77 is equipped with two ES9038PROs, the latest ESS ES9038 high-end saber component, an FPGA processor and the Amanero latest generation asynchronous USB interface.
Implementing 2 DAC ES9038PRO instead of one, in addition to increasing the signal-to-noise ratio, allows dual Mono Pur work and a wider and more precise sound stage.
The FPGA (Field-Programmable Gate Array) processor used is the same as used in very high-end DACs, such as the popular ROCKNA WAVEDREAM DAC. Your DAC NFB-27-77 can always be updated at the firmware level, and therefore never be obsolete.
Non-Feedback is the technology used by Audio-GD so that it does not "color" the sound at the level of the electronics of the output stage, giving you a sound of professional neutrality.
Unique interior and connectivity
This unit has two ES9038pro SABER DACs supporting up to 32bit signals/ 384kHz and DSD in USB, all thanks to the new asynchronous AMANERO 384 combo interface of the manufacturer. In order to use the AMANERO correctly, here are the indications of Audio-GD as well as the download link of the driver: Amanero Combo 384 USB Interface.
The DAC preamplifier NFB27.77 also has a potentiometer with switched resistors of the highest quality on 100 stages.
The NFB-27.77 has 8 inputs: XLR / RCA x2 / USB / Coaxial / BNC / I2S via HDMI / Toslink optics, along with 3 analog inputs: XLR / RCA / RCA. Including the DAC and Preamplifier outputs: XLR / RCA, as well as the 4 outputs Headphones: 1x XLR 4 PIN (ACSS) / 2x XLR 3 PIN / 1x 6.35mm stereo jack.
Trumps and features HIGH FIDELITY
32bit / 384kHz / DSD / DXD / PCM / TCXO / ES9038
The 100% symmetrical and discreet design of this converter is backed by 5 groups of Class A power supplies. 24K Gold Plated RCA Plugs as well as Nover (UK) capacitors have been specially manufactured on specifications audio-GD. The NFB-27.77, in addition to all the rest, has a TCXO Audio-GD internal clock directly integrated into the system lowering the Jitas well as internal wiring designed entirely in OCC copper.
Remote Control Metal
This NFB-27.77 is accompanied with its metal remote control, brushed aluminum finish. All the sobriety and class of Audio-GD stand out from this remote, as it is purified and functional. You will find 2 buttons to change your input sources, as well as 3 buttons to adjust the volume: Plus / Minus / Mute.
SABER ES9038 - DAC
This SABER ES9038 conversion chipset built into the NFB-27.77 is one of the first generation 32bit converters capable of reading high-definition signals up to 32bit / 384kHz, not forgetting DSD and PCM files. It is recognized as one of the most efficient and effective converters. You can find all its detailed documentation on the official website of ESS: ES9038Pro - Reference 32-bit Audio DAC.
Acss Connectors
The ACSS analog output stage, which is a feature of AUDIO GD, reduces the signal with only one buffer stage and an original Dale (USA) resistor. This shorter signal path allows the ES9038Pro to reproduce the highest level of detail and dynamics on ESS SABER DACs.
Technical characteristics
| Specifications | |
|---|---|
| Signal / Noise Ratio | > 120dB |
| Output Impedance | + 16dB (XLR) |
| Output Level | DAC: 1Ω / Headphones: 22V RMS / Variable preamplifier output: 10V RMS / Variable DAC output: 2V RMS / ACSS: 2mA + 2mA |
| PHeadphone output (Balanced) | (100Ω) / 1300mW (300Ω) / 650mW (600Ω) / 8000mW (50Ω) / 4000mW |
| Input sensitivity | 0.5Vp-p (75Ω, Coaxial) / 19dBm (Optical) / USB 1.1 - 2.0 (Full Speed, Class 2) |
| Sample rates | USB: 44.1kHz to 192kHz / Coaxial: 44.1kHz to 192kHz / Optical: 44.1kHz to 96kHz |
| Frequency Response | 20Hz - 20kHz (<-0.1dB) / 1Hz - 140kHz (-3dB) |
| Supported Operating Systems | Windows / OS X / Linux |
| Various | |
|---|---|
| Consumption | 43W |
| Dimensions | 430 x 430 x 93 |
| Weight | 15kg |
| Color | Black |
| Accessories | Power cable / USB cable / Remote control Aluminum |
| Input | XLR |
| Input | I2S via HDMI |
| Input | RCA |
| Input | SPDIF |
| Output | RCA |
| Output | ACSS |
| Output | XLR |
| DAC / ADC Chip | ES9038PRO |
| Max sampling rate | 192kHz |
| Color | Black |
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