@

Wisdom in mind,   enthusiasm at heart.

Home Products Warranty Shop Contact Us Shipment Chinese


@

NFB-29.38 (ES9038Pro)

Discrete  DAC+ Headphone amplifier + Preamplifier
With 2 groups RCA  analog inputs

DSD , DXD support from USB and I2S inputs
32bit / 768K Sabre ES9038Pro
32bit / 384K Asynchronous Transfer
Xmos U208
Built in OCC

   

  

Summarize

Use Manual

Specs

Custom Option

Shipping Cost


Discontinued the analog idle input short circuit function:
         The unit  had design the analog idle input short circuit (In 5 and In 6) for avoid the disturb between different sources.
         This design also applied in a lot high end
brand devices.
         The working theory : 
Without the idle input short circuit ,if the input 5 and input 6 had connect two extra DACs,  while users select the either input 5 and input 6 , the another input signal will fire through the circuits and mix  into the using signal, even though this signal is  weak  but still can degrade on the sound quality.
          With the idle input short circuit function : if user select either the input 5 and input 6, the another input signal will short circuit then no any signal fire through circuits , can keep the sound quality had not degrade.
       Below case users want to discontinued the idle input short circuit function, pull off the 4 jumpers as mark on the photo:
      1, The same extra source not only connect the
unit analog input, but connect with other amps simultaneity.
      2, The same extra source connect to the
unit input 6 and input 5  at simultaneity.

          

Click to review : RJ45 and HDMI pin definitions
        

Gain button:
Select the Fast / Slow volume control characteristics.
        H: Fast.  64 steps range.  
        L: Slow. 100 steps range.
        F: (Full ) High gain mode.
100 steps range. (For the low sensitivity headphone like the HE-6 or the source had low output voltage level)
       
S: (Super)High gain mode. 64 steps range. (For the low sensitivity headphone like the HE-6 or the source had low output voltage level)

The button on rear : Pull out for the DAC / preamp without volume control , Push into for the DAC / Preamp with volume control. The headphone output always had the volume control. Please operate the button while the unit power off .

The display auto dark :  Push into the jumper is auto dark .Please operate the button while the unit power off .


DSD / PCM support from I2S input :
The DSD/PCM support not only from the USB input, but the I2S input.   The NFB-29 can detect the I2S input signal, if input DSD signal, it will auto to remove the DSD pop noise while select the DSD track .




Digital filter settingG

@
IIR0 OIIR1GFor DSD.
@ IIR0 IIR1
47K Push Into Push Into
50K Pull Off Pull Off
60K Pull Off Push Into
70K Push Into Pull Off
FIR0AFIR1AFIR2G For PCM.
@  FIR_0  FIR_1 FIR_2
Fast roll-off,  Linear: Push Into Push Into  Push Into
Slow roll-off, Linear: Push Into Push Into Pull Off
Fast roll-off, Minimum: Push Into Pull Off Push Into
Slow roll-off, Minimum: Push Into Pull Off Pull Off
Fast roll-off, Apodizing: Pull Off Push Into Push Into
Fast roll-off, Hybrid: Pull Off Pull Off Push Into
Brickwall filter: Pull Off Pull Off Pull Off


@

备ק号:粤ICP备05020367号

权Ҧ:          庆华  ͧӭ响

Copyright(C) 2004   www.audio-gd.com    All Rights Reserved@