AUDIO-GD NFB-11.28 PERFORMANCE EDITION DAC ES9028Pro Preamplifier Headphone Amplifier 32bit 384kHz DSD512 Accusilicon

Versatility & Efficiency

The Audio-GD NFB-11.28 is THE Swiss army knife for audiophiles. Combining the functions of DAC, preamplifier and headphone amplifier, it will meet most needs.

Featuring many new features, this new version of the acclaimed NFB-11 now includes an ES9028Pro DAC, an Amanero Combo 384 USB interface, selectable digital filters and an MCU controller.

Performance Edition

The NFB-11.28 in its Performance Edition version is optimized to provide the best possible measurements. Its architecture has therefore been reviewed, notably with the use of a high-performance Accusilicon 318B femtosecond clock, but also a complete overhaul of the power supply circuit. This one is now made up of no less than 8 double-stage power supply groups, allowing each circuit to be powered independently to get the most out of each component.

To ensure the performance of the NFB-11.28 Performance Edition, Audio-GD took care of many measurements using an AP-2722 Audio Precision. (The different measurements are available at the end of this page).

A breathtaking sound reproduction

Audio-GD NFB-11.28 Performance Edition DAC ES9028Pro Préamplificateur Amplificateur Casque 32bit 384kHz DSD Accusilicon

Non-feedback & ACSS

NFB-11.28 offers optimal performance thanks to carefully selected components. Thus, in addition to supporting DSD / DXD and sampling rates up to 32bit 384kHz, it benefits from NFB (Non-Feedback) technology developed by Audio-GD on the ACSS stage.

This allows the NFB-11.28 to offer a lower sound colouring and therefore a faithful reproduction, a very low distortion and a high linearity. You gain in dynamics, detail and neutrality.

Accusilicon 318B 100MHz

For this Performance Edition version, the clock of the NFB-11.28 is updated to a much more powerful model, an Accusilicon 318B at 100MHz. This provides an ultra low jitter of 0.2ps between 10Hz and 1MHz and 0.071ps between 12kHz and 80MHz. Its phase noise is also very low as measured at -146dBc/Hz to 1kHz.

Jitter RMS (Accusilicon 318B, 100MHz, 3.3V)
10Hz - 1MHz	0.2ps
12kHz - 80MHz	0.071ps

Phase Noise (Accusilicon 318B, 100MHz, 3.3V)
1Hz	-58dBc/Hz
10Hz	-88dBc/Hz
100Hz	-118dBc/Hz
1kHz	-146dBc/Hz
10kHz	-163dBc/Hz
100kHz	-168dBc/Hz
1MHz	-169dBc/Hz

DAC Sabre ES9028Pro

The NFB-11.28 includes an ESS ES9028Pro DAC ESS to convert digital signals to analog. This allows support for output sampling rates up to 32bit 384kHz and an SNR of 118dB.

It provides significant improvements over its predecessor (ES9018) such as compensation of the harmonic distortion rate of the analog output through a 32bit processing block, improvement of oversampling filters, phase lock loop for greater accuracy and power distribution.

Specifications
Product type	Headphone Amplifier / DAC
Inputs	1x Optical Toslink 1x USB-B (Amanero) 1x Coaxial S/PDIF
Outputs	1x Stereo RCA 1x Jack 6.35mm
Output level	Headphone output: 10V max Variable output: 5V max Fixed output: 2.5V RMS
Output power	3500mW @ 25Ω 1800mW @ 50Ω 900mW @ 100Ω 300mW @ 300Ω 150mW @ 600Ω
Output impedance	Headphone output: 1Ω DAC output: 2Ω
Input sensitivity	Coaxial : 0.5Vp-p @ 75Ω Optical: 19dBm
Supported OS (USB)	Windows, Max, Linux, iOS, Android
Supported sampling rates	USB : PCM up to 32bit 384kHz, DSD up to DSD512 Coaxial : PCM up to 24bit 192kHz Optical : PCM up to 24bit 96kHz

Specifications

Product type

Headphone Amplifier / DAC

Inputs

1x Optical Toslink
1x USB-B (Amanero)
1x Coaxial S/PDIF

Outputs

1x Stereo RCA
1x Jack 6.35mm

Output level

Headphone output: 10V max
Variable output: 5V max
Fixed output: 2.5V RMS

Output power

3500mW @ 25Ω
1800mW @ 50Ω
900mW @ 100Ω
300mW @ 300Ω
150mW @ 600Ω

Output impedance

Headphone output: 1Ω
DAC output: 2Ω

Input sensitivity

Coaxial : 0.5Vp-p @ 75Ω
Optical: 19dBm

Supported OS (USB)

Windows, Max, Linux, iOS, Android

Supported sampling rates

USB : PCM up to 32bit 384kHz, DSD up to DSD512
Coaxial : PCM up to 24bit 192kHz
Optical : PCM up to 24bit 96kHz

General
Power supply	220-240V AC 50/60Hz
Consumption	12W
Weight	1.59kg
Dimensions (LxPxH)	180 x 220 x 55mm
Housing material	Aluminium
Color	Black
Package	1x Audio-GD NFB-11.28 Performance Edition 1x Power cable 1x USB cable

General

Power supply

220-240V AC 50/60Hz

Consumption

12W

Weight

1.59kg

Dimensions (LxPxH)

180 x 220 x 55mm

Housing material

Aluminium

Color

Black

Package

1x Audio-GD NFB-11.28 Performance Edition
1x Power cable
1x USB cable

Input	SPDIF
Input	USB
Input	Optical
Output	Jack 6.35mm
Output	RCA
DAC / ADC Chip	ES9028PRO
Max sampling rate	384kHz
Max sampling rate	DSD512
Color	Black
Class	N/A
Networking	No
Remote Control	No

Entrée usb NFB 11
Acheté se super dac il y a trois ans.
Performance indéniable en usb sur mon vieux mac book pro.
Mort de vieux mac et achat d'un mac book pro actuel et plus possible de lire en usb.....
Audiophonics n'a pour solution que l'achat d' un convertisseur usb spdif a 180 euros.....
Convertir deux fois n'a pas de sens.
Donc cet engin qui ne peut évolué est trés decevant.
Olivier

(0)

Message from Audiophonics service
L’arrêt du support de l'interface USB de votre appareil est plutôt la faute du fabricant de votre ordinateur ...
Concernant l'usage d'une interface SPDIF, il n'y a pas ici de notion de double conversion le signal arrivant dans le DAC restant 100 % numérique.
Nous vous avions proposé une bonne référence mais il en existe à tous les prix :
https://www.audiophonics.fr/fr/interfaces-digitales/phiree-u2s-2019-interface-usb-vers-spdif-sa9023-otg-24bit-96khz-noir-p-10522.html

This review has been posted for AUDIO-GD NFB-11.28 PERFORMANCE EDITION DAC ES9028Pro Preamplifier Headphone Amplifier 32bit 384kHz DSD512 Accusilicon

Excellent Dac a condition de soigner le cablage
Je poste cet avis,ayant eut l'opportunité d'en acquérir un d'occasion quasi neuf,le produit n'étant pas disponible pour le moment.
Utilistaion pc portable,foobar asio:les cales secteur et usb doivent obligatoirement être remplacés par des modèles plus qualitatifs(compter environ 100 euros)
Dans ce cas,trés belle image stéréo,sonorité trés detaillée mais pas agressive;si vous aimez un son plutôt rond et chaud,passez votre chemin.
Pour ma part,associé a un ampli Rega IO et des enceintes Q Acoustics Concept20;du pur bonheur sur du jazz/blues acoustique,c'est extremement vivant et enjoué.

(0)

This review has been posted for AUDIO-GD NFB-11.28 PERFORMANCE EDITION DAC ES9028Pro Preamplifier Headphone Amplifier 32bit 384kHz DSD512 Accusilicon

Un super dac audiophile pour ce prix
J ai acheté ce dac il y a 2 semaines et que dire presque 4 kilos des composants de premier choix conception audiophile composants de très haute qualité.L écoute est très musicale aéré et avec une pèche d enfer.Mais attention les moindre petits détail son perceptible ce qui veut dire que les mauvais enregistrements sautent aux oreilles .Pour ma part j ai redécouvert mes enregistrements avec beaucoup de plaisir il faut dépenser au moins 2 a3 fois le prix pour avoir cette qualité chez la concurrence Un super achat.

(0)

This review has been posted for AUDIO-GD NFB-11.28 PERFORMANCE EDITION DAC ES9028Pro Preamplifier Headphone Amplifier 32bit 384kHz DSD512 Accusilicon