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Audio-GD NFB-11.28 Performance Edition Desktop Discrete DAC & Headphone Amp / Preamp ESS9028PRO

- Discrete full non-feedback design
- DAC+ Headphone amplifier / Preamplifier
- Built in Sabre ES9028 Pro
- DSD64-512 , DXD, PCM 32bit / 384K support from USB
- A femtosecond Accusilicon 318B clock built in
- 8 group double stage PSUs built in

What is the Ultra clock Accusilicon 318B ?
The one of the best clock in world.

What is the different between NFB-11.28 Performance Edition and NFB-11.28 original version?
The NFB11.28 PE (Performance Edition) is the high specs version, it had improved on the specs but not lose the musical .
The NFB-11.28 original version can consider call it Musical edition, its point on the rich musical reproduce but not specs.

What is the NFB-11.28 Performance Edition?
In this price range:
You may can not easy find an all in one model which is built in ES9028PRO,but not the cheap and low performance ES9028 Q2M .
Even you can, but you may can not easy find a model had the very low THD .
Even you can, but you must can not find the model built in full discrete amp, and it is Full-Non-Negative-Feedback design! The low THD is depend on the ultra linear design but not depend on the deep negative feedback.

Specifications
(Improvement may result in changes in specifications and design without notice. All diagrams test at input 0DBFS, output 3V.)

Output Level
Headphone output : 10V RMS
Variable output : 5V Max
Fixed output: 2.5V RMS

Output power
(Only for headphone.)
3500mW/25 ohm
1800mW/50 ohm
900mW/100 ohm
300mW/300 ohm
150mW/600 ohm

Output impedance
1 ohm / Headphone output
2 ohm / DAC output

Input Sensitivity
0.5 Vp-p (75 Ohms, Coaxial)
19 dBm (Optical)
(The TV and game box may had not enough level for SPDIF inputs.)

Support Operate Systems (USB)
Windows, Mac, Linux, iPhone, iPad

Support Sampling
USB model: 44.1kHz to 384kHz, DSD64 - 512
Coaxial model: 44.1kHz to 192kHz
Optical model: 44.1kHz to 96kHz

Power Requirement
1 Version 100-120V AC 50/60 Hz
2 Version 220-240V AC 50/60 Hz

Power Consumption
12W

Package Weight
2.2KG

Dimensions
W180 X L220 X H55(MM, Fully aluminium ,with feet)

Accessories
AC power cord X1
USB cable X1