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Amanero
combo 384 Intruduce and driver download
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.
(The THD test with AP-2722, input 0DBFS, output 3V,click to
zoom )
In this price range:
Not to say the non feedback design, you may can not easy find a model
built in the massive power supplies.
In total 8 group regulators
built in. Please read the below detail of the regulators, it most exist
in the USD1500+ devices .
1,The analog parts applied two group super linear discrete
regulators.
2,The digital parts applied the double stage regulators, 4 groups are the
ultra speed regulators.
3,Another two groups are the OPA + discrete transistor serve regulators, its
output ripple far lower than 1uV, they powered supply for
the Left and Right channels of ES9028 PRO built in DACs separately .
Compared to
the ultra speed regulator, the serve regulator can improve
the sound quality much better on detail and dynamic . The L and R
separate power supply boost the sound stage much wider and deeper .
The very pure power supply let the unit has very good performance on jitter
reject !
(test with TCXO built in unit , click to zoom)
In this price range:
We designed the NFB11.28 performance edition not only based on the
AP measure but through a lot auditioned to confirm the part's
parameters.
It has the dynamic sound with excellent detail, very
neutral and monitor sound but still musical.
Its frequency bands very flat, no any drop off in 20Hz-20KHz.
(The THD test with AP-2722, input 0DBFS, output 3V,click to
zoom )
In this price range:
The below diagram show the THD + Noise level. It is quite flat on
the bandwide, the THD reduced at high frequency , which is
make the
high frequency much pure and fresh, this is not depend on the
negative feedback, it is Full-Non-Negative-Feedback design built in.
You may don't know that some brand designs , the high frequency
even worst than other frequency bands.
(The THD test with AP-2722, input 0DBFS , output 3V,click to
zoom )
In this price range:
We 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 .
(click to zoom )
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
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Summarize
