AUDIO-GD NFB-7.77 2xES9038Pro DSD 32bit / 384K USB Amanero I2S HDMI TCXO

AUDIO-GD NFB-7.38 DAC ES9038Pro DSD 32bit / 384K USB Amanero I2S HDMI TCXO

The Audio-GD NFB-7.77 is an exceptional DAC incorporating a dual converter ES9038Pro in a careful and rigorous symmetrical design. It also incorporates USB Amanero and I2S HDMI.


  • Double DAC ES9038Pro
  • 32bits 384kHz
  • USB Amanero / I2S HDMI
  • Symmetrical design
  • TCXO

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AUDIO-GD NFB-7.77 - Double ES9038 Accusilicon - crystek

DAC 32bit 384khz USB AMANERO I2S HDMI Symmetrical

AUDIO-GD NFB-7.77 ES9038

This is 2019 version of D77. It is equiped with the last Accusilicon 318B oscillators to upgrade the DAC precision even further than with TCXO clocks.
This model also has 2 Crystek Clocks on the Amanero USB interface.

Versatile, efficient, unmissable

The NFB-7.77 DAC is equipped with the latest ESS double saber component ES9038 PRO and the Amanero latest generation asynchronous USB interface.

This new DAC is a "next level" in the AudioGD range. Equipped with an ARRAY FIFO FPGA processor to perfectly synchronize the two DAC ES9038 PRO dual mono, the NFB 7.77 pushes the current limits of music reproduction.

This DAC is based on a tandem of ES9038PRO (16 DAC!) With programming that does not have the usual defects of 32 bit chips to artificial sound. This DAC reconciles the old and new generations bringing matter, balance, a perfect fusion between sense of rhythm and High Definition.

Thanks to its NFB analogue acronym of No Feedback, the ultra-fast rise time of its pure class A stages allows a great respect for the harmonics, without distortions, without digital hardness, transcribing without fail the information of the two DAC ES9038PRO HyperStream II.

The new generation includes aOCC copper wiring and three original Accusilicon clocks.


The two built-in ES9038 PRO SABS allows you to manage 32Bit / 192kHz sources in SPDIF and up to 384kHz in USB. In order to use the NFB-7.77 in Windows via its USB-B input on the rear panel, you will first need to download the Driver Amanero Combo 384 AUDIO GD:ttp: // "target =" _ blank ">Amanero Combo driver.

Back Audio-GD NFB-7.38

Stunning sound reproduction

32bit / 384kHz / DSD / DXD / Accusilicon / RJ45

The 100% discrete design of this DAC (no PDO) goes through three stages (voltage, low pass filter, buffer) with transistors without any capacitors on the audio path, supported by a class A power supply (15 separate controls) of rapid rise able to provide the necessary energy (40000 μf of filtering). This 7.77 version has three fully separated class A power supplies for digital, left and right digital output stages for analog outputs.

TheNover (UK) manufacturers have been specially manufactured,on Audio-GD specifications. The output transistors Toshiba and Hitachi have been manually paired. AUDIO GD use the best available components: Wima, Dale, ESS, Atmel. The internal wiring is made of OCC copper.

Audio-GD NFB-7.38 de haut

Horloge accusilicon Audio-GD

Accusilicon 318B 100Mhz

This 2019 version is now equiped with 318B Accusilicon Oscillators, which lowers even more jitter and digital noise. This upgrades benefits to every interface & component, starting with the dual ES9038PRO chip at the core of the device. 


This high-fidelity DAC NFB-7.77 is equipped with the famous ESS ES9038 32 bit / 384kHz. This conversion chipset is capable of reading High Definition formats from DSD to PCM with one of the best signal-to-noise ratios on the market. ACSS Analog Output Stage, AUDIO GD Specification, Reducedt signal with only one buffer stage and an original Dale resistor (USA). This shorter signal path allows the ES9038 to reproduce the highest level of detail and dynamics on the ESS SABER DACs. This version equipped with 2 ES9038PRO reduces background noise, doubles dynamic capacity and reduces crosstalk by a truly symmetrical pattern of conversion to the analog stage.


Signal-to-Noise Ratio Consumption
120dB (XLR outputs)
Output Level2.5V RMS (RCA) / 5V (XLR) / 2mA + 2mA (ACSS)
Output impedance4 Ohm
Supported Operating Systems/ Windows (44.1kHz to 384kHz) / OSX (44.1kHz to 384kHz) / Linux (44.1kHz to 384kHz) / USB compatible iPhone and iPad via Apple Camera Kit
Sampling rateCoaxial: 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz Optical: 44.1kHz, 48kHz, 8kHz, 8kHz, 8kHz, 8kHz,8.2kHz, 96kHz DSD 64/128 and DXD
Input sensitivity0.5Vp-p (75 Ohm, Coaxial) / 19dBm (Optical) / USB 2.0 (Full Speed)
Digital inputsSPDIF RCA x2 / SPDIF BNC / Optical Toslink / HDMI / USB
Analog outputsXLR balanced / RCA / ACSS
Frequency Response20Hz - 20kHz (-0.2dB)
chassis100% aluminum
ColorBlack Anodized
AccessoriesPower cord / USB cable
Data sheet
InputI2S via HDMI
Max sampling rateDSD128
Max sampling rate384kHz
Remote ControlNo
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AUDIO-GD NFB-7.77 2xES9038Pro DSD 32bit / 384K USB Amanero I2S HDMI TCXO
The Audio-GD NFB-7.77 is an exceptional DAC incorporating a dual converter ES9038Pro in a careful and rigorous symmetrical design. It also...

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