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NFB-11.38 Performance Edition
(The Top Grade ESS9038 PRO Built In)
Discrete full non-feedback design
DAC+ Headphone amplifier / Preamplifier

Built in Sabre ES9038 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 NFB-11.38 Performance Edition?
In this price range:
You may can not easy find an all in one model which is built in ES9038PRO,but not the cheap and low performance ES9038K2M .
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.

Audio-GD have the serious quality control on the products, every unit before shipping , must burn in 100 hours , and through the AP ATS-2 measure to confirm the performance achieved the standard .

Summarize:
Fully discrete analog stages with Non- feedback ACSS analog amplifiers built in .
Built with 4 pcs 20W (in total 80W) high speed output transistors, no matter to drive the most headphones.
Total of 8 groups dedicated power circuits are used to purify the power supply.
High-End grade parts built in , ALPS 27 volume pot .
CMC pure copper RCA sockets ect.
3 channels digital input : coaxial / Optical / USB
DAC output : RCA (User can setting with either variable level as DAC with preamp combo or fixed output level as dedicated DAC )
Headphone output : 6.3MM SE

SPECIFICATIONS:
Output Level:
Headphone output : 10V Max
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)

Support Operate Systems (USB):
Windows, Mac,Linux, Iphone & Ipad

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

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

Power Consumption: 13W
　
Package Weight: 2.2KG

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

Accessories:
AC power cord X1
USB cable X1

Improvement may result in changes in specifications and design without notice.