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Audio-GD - NFB 7.77 Balanced Dual ES9038 PRO FPGA DAC (DSD, DxD, Amanero USB)

€ 2.109 (€ 1.743 ohne MwSt.)
Black Edition Information
Singxer F1 USB (Replace Amanero) with installationInformation
HDMI I2S Input (Replace RJ45)Information
Coaxial RCA Input (Replace BNC)Information
AES/EBU Digital InputInformation
Power cable (Default C13 EURO)
Audio-GD - Digital SPDIF coax interlink RCA (1m)Information
Audio-GD - Digital SPDIF coax interlink BNC (1m)Information
Audio-GD - Analogue RCA interlink stereo pair (1m)Information
Audio-GD - ACSS Analogue balanced interlink (mini-xlr)Information
  • Beschreibung
  • Spezifikationen

Audio-GD - NFB 7.77 (Balanced DUAL ES9038Pro & FPGA Amanero USB DAC)

NFB-7.77 is Audio-GD's flag-ship - dual -  Sabre ES9038Pro based Digital Analogue Converter. An additional FPGA was implemeneted to separate the data feed to each dual ES9038 Pro in mono mode. It re-clocks and FIFO's all incoming signals to make sure the output data is (almost) free from jiter and reaches optimal timing with its source clock. The FPGA design includes a high performance SPDIF interface, replacing the less good SPDIF interface of the ES9038 Pro .

All parts and components are selected based on excellent sonic and measurements performance. Components are e.g. from DALE resistors (USA), WIMA capacitors (Germany)  and NOVER parts (UK) . The used components but also the technical design (e.g. discrete analogue section and high speed FPGA's) of this system were being selected after many years of experience and practices and are considered to perform and provide sublim sonic results. Supporting todays high resolutions and up to date interfaces like USB and I2S.

Enjoy DSD512 and best sound quality with Singxer F1 USB module installed (Replacing Amanero)

Dual ES9038 Pro design, one per channel in mono mode, this improves the channel crossover and soundstage is larger and extremely precise.


  • Discrete True Balanced DAC
  • Built in FPGA processor to reject external jitter
  • Dual 32bit / 768K Sabre ES9038Pro
  • 32bit / 384K Asynchronous Transfer Amanero Combo 384
  • Built in OCC and TCXO ,no upgrade options
  • OCC wires & low-jitter TCXO clocks applied
  • Discrete analogue output & power supply
  • Fully DC coupled design without capacitors in signal path
  • Non- feedback ACSS analog output control
  • Total of 15 regulated low noise class A power circuits
  • Over 40,000uF power capacity to purify the class A power supply
  • high-grade matched transistors only
  • Amanero Combo384 with isolation

Audio-GD USB isolated PSU

Feb 14th, 2018: Separate pure class A PSU power supply for Amanero and Singxer F1 USB modules. While isolated USB interfaces usually take the power supply from its (noisy) source. This also allows users to us any source (e.g. smartphone) and not only sources providing the 5V power. .The new PSU pure class-A board will boost the USB sound quality even with less good (powered) sources.

USB Singxer F1 Option (Replacing Amanero)

MAGNA HIFI is offering a significant upgrade of the internal USB interface by replacing the Amanero USB interface for a more sophisticated Singxer F-1 XU208 board using the Crystek CCHD-575 ultra low phase noise clocks. Besides the sound quality improvements it enables native DSD512 support! We'll make sure the Singxer F-1 is properly installed and using internal ultra clean power source from the internal DAC to ensure best sound quality!

Black Edition

Black Edition is an unique option for Audio-GD equipment. Click here to read about our unique and special Black Edition option


  • 1 Coaxial BNC SPDIF (Option: Replace by Coaxial RCA)
  • 2 Coaxial BNC + RCA SPDIF
  • 4 Optical Toslink
  • 5 I2S input (RJ45) (Option: Replace by HDMI LVDS)
  • 6 USB Amanero


  • ACSS balanced
  • XLR balanced
  • RCA single ended


Download USB Amanero drivers for Windows 10
Download USB Amanero drivers for Windows 7 & 8

No drivers required for Linux and/or Mac OS
OSX 10.6+ and Linux with UAC2 compliant kernel
Microsoft Windows: KS/Wasapi/WDM/ASIO


IIR Filters (DSD only) IIR0 IIR  
50K OFF OFF  Default
FIR Filters (PCM only) FIR 0 FIR 1 FIR 2
Fast roll-off,  Linear ON ON ON
Slow roll-off, Linear ON ON OFF  Recommended
Fast roll-off, Minimum ON OFF ON
Slow roll-off, Minimum ON OFF OFF
Fast roll-off, Apodizing OFF ON ON
Fast roll-off, Hybrid OFF OFF ON
Brickwall filter OFF OFF OFF  Default

The filter Settings are for personal preference. The default setting is typically the best for most listeners. Feel free to adjust it according to your preference after you are familiar with the sound. IIR stands for Infinite Impulse Response. These settings will likely not offer significant sonic difference.

Gewicht: 15 kg
Breite: 430 MM
Länge: 430 MM
Höhe: 85 MM
Hersteller: Audio-GDAudio-GD


Dual Sabre ES9038Pro
>120DB (XLR output)
2.5V (RCA) | 5V (XLR) | 2+2mA (ACSS)
0.5 Vp-p
19 dBm
USB: 44.1 - 384kHz | Coax: 44.1 - 192kHz | Optical: 44.1 - 96kHz
1.0, 1.1, 2.0 & 3.0
Windows, iOS, Linux
W430 X L430 X H85 (Alumunium)
USB Cable
IEC Power Cord

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