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

AUDIO-GD NFB-11.28 PERFORMANCE EDITION DAC ES9028Pro Preamplifier Headphone Amplifier32bit 384kHz Accusilicon
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.

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Audio-GD NFB-11.28 Performance Edition

DAC ES9028Pro Preamplifier Headphone Amplifier32bit 384kHz Accusilicon

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

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

USB Amanero Combo 384

Equipped with an Amanero Combo 384 USB interface rather than a USB32, this one offers both optimal performance and compatibility. It therefore supports sampling rates up to 32bit 384kHz as well as DXD and DSD up to DSD512. Its design also allows it to enjoy a very low jitter.

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 - 1MHz0.2ps
12kHz - 80MHz0.071ps
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
Audio-GD NFB-11.28 Performance Edition DAC ES9028Pro Préamplificateur Amplificateur Casque 32bit 384kHz DSD Accusilicon
Audio-GD NFB-11.28 Performance Edition DAC ES9028Pro Préamplificateur Amplificateur Casque 32bit 384kHz DSD Accusilicon

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.

High-end components

All components have been carefully selected by Audio-GD to provide a high-performance and durable device. For example, you will find an ALPS 27 potentiometer or RCA plugs made of pure copper.

Technical characteristics

Specifications
Product typeHeadphone Amplifier / DAC
Inputs1x Optical Toslink
1x USB-B (Amanero)
1x Coaxial S/PDIF
Outputs1x Stereo RCA
1x Jack 6.35mm
Output levelHeadphone output: 10V max
Variable output: 5V max
Fixed output: 2.5V RMS
Output power3500mW @ 25Ω
1800mW @ 50Ω
900mW @ 100Ω
300mW @ 300Ω
150mW @ 600Ω
Output impedanceHeadphone output: 1Ω
DAC output: 2Ω
Input sensitivityCoaxial : 0.5Vp-p @ 75Ω
Optical: 19dBm
Supported OS (USB)Windows, Max, Linux, iOS, Android
Supported sampling ratesUSB : PCM up to 32bit 384kHz, DSD up to DSD512
Coaxial : PCM up to 24bit 192kHz
Optical : PCM up to 24bit 96kHz
General
Power supply220-240V AC 50/60Hz
Consumption12W
Weight1.59kg
Dimensions (LxPxH)180 x 220 x 55mm
Housing materialAluminium
ColorBlack
Package1x Audio-GD NFB-11.28 Performance Edition
1x Power cable
1x USB cable

THD

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

THD+N

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

Frequency response

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

Jitter

Audio-GD NFB-11.28 Performance Edition DAC ES9028Pro Préamplificateur Amplificateur Casque 32bit 384kHz DSD Accusilicon
 
Data sheet
InputUSB Amanero
InputOptical
InputUSB 2.0
InputSPDIF
InputUSB-B
OutputJack 6.35mm
OutputRCA
DAC ChipES9028PRO
Max sampling rateDSD512
Max sampling rate384kHz
ColorBlack
Channel2 channels (Stereo)
 
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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.
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This review has been posted for AUDIO-GD NFB-11.28 PERFORMANCE EDITION DAC ES9028Pro Preamplifier Headphone Amplifier 32bit 384kHz DSD512 Accusilicon
 
AUDIO-GD NFB-11.28 PERFORMANCE EDITION DAC ES9028Pro Preamplifier Headphone Amplifier 32bit 384kHz DSD512 Accusilicon
The NFB-11.28 in its Performance Edition version is optimized to provide the best possible measurements. Its architecture has therefore been...

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