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NFB-28.38 (ES9038Pro)

Discrete  DAC+ Headphone amplifier / Preamplifier
With XLR / RCA analog inputs

DSD , DXD support from USB & I2S Input
32bit / 768K Sabre ES9038Pro
32bit / 384K Asynchronous Transfer
Amanero Combo 384
Built in OCC and TCXO ,no upgrade options


Summarize Use Manual Specs Custom Option Shipping Cost

Specifications might subject to change without prior notice for product improvement.

S/N Ratio


<0.0008% (2.8V output level  )


Output impedance

2 ohm

Output Level

 Headphone output : 19V RMS (balanced , max)
Preamp Variable output (balanced) : 10V RMS (max)
Preamp Variable output (RCA) : 5V RMS (max)

Headphone amp output power level
(Only for  headphone.)
Balanced mode

9500mW / 25 ohm
8000MW /  40 ohm
 3500MW  /  100 ohm
1200MW / 300 ohm
600MW  /  600 ohm

Headphone amp output power level
(Only for  headphone.)
Single ended mode

3600mW / 25 ohm
2500mW / 40 ohm
1100mW / 100 ohm
400mW / 300 ohm
200mW / 600 ohm

Digital Input Sensitivity

0.5 Vp-p(75 Ohms, Coaxial)
19 dBm (Optical)

Analog Input Sensitivity
0.7V  to 5V RMS (RCA)
0.7V  to 10V RMS (XLR)


Frequency Response (DAC +AMP)

20Hz - 20KHz ]<-0DB^

Support Operate Systems (USB)

Windows, Mac

Support Sampling

 USB / I2S model: 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz , 192kHz, 352.8kHz,384kHz
 Coaxial model: 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz ,192kHz
Optical model: 44.1kHz, 48kHz, 88.2kHz, 96kHz

Power Requirement

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

Power Consumption


Package Weight

Approximately 5KG


Approximately W240 X L360 X H80 (MM, Fully aluminium ) 


AC power cord            X1
USB cable                X1



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