@sivakuru, iaudio,
Any updates on uDAC impressions?
Well, I am not good at writing reviews, especially when
it comes to audio. Anyways since you asked, here is my
2 paise on it.
Short answer the uDAC has certainly made my listening
sessions fatigue free and enjoyable. The very fact that
I am listening to my songs on my IEMs or the speakers
for a longer duration is a testimony that the sound
coming out the uDAC is good.
I have been comparing the uDAC with the DAC on my laptop,
recently bought creative xmod, Harmon Kardon AVR 330. The
source have been the same mp3 files on my computer. I listen
either through my Bose AM 10 speakers or Logitech z5500 speakers
or NE7m IEMs.
The DAC on the laptop should be basic ones. The sound is dull
and there is no detail. If I crank up the volume, it becomes
coarse and unrefined and hence after listening to a few songs
you will not be in a mood to listen further.
I wanted a change and went for the xmod because of its low
price. The xmod has 2 options. crystalizer and 3d and ofcourse
it acts as a DAC by itself as it replaces the inbuilt sound
card. One can turn on the crystalizer and/or the 3d options or
switch those off and use the xmod as just a DAC. The xmod
as just a DAC does not bring a huge improvement over the onboard
DAC on my laptop. There are people who seemed to have observed
huge difference in the DAC section itself but I did not see
a lot. The crystalizer tries to up the highs and decrease the
lows. It would look like the volume has increased and you might
feel like hearing more details. It brings more bass along with
it. That said, it would start sounding artificial soon. In good
recordings, you might feel the sound is better but in bad recordings,
it might sound very coarse and unrefined. The line out of the xmod
seemed to be more powerful than the headphone section. So, yes,
the xmod is a better option than the onboard DAC but depending
upon the collection, you might enjoy it or not. There is nothing
to hate it though. I actually liked the 3d option. It kind of made
the sound laidback and spread and surround but the details and
punch was lacking in the 3d option.
It is because of all that I went for the uDAC especially because
of the reduced price. The uDAC with the NE7 has really made a lot
of difference (though bass heavy). It sounds smooth and does not
fatigue at all. The xmod vs uDAC can be explained with the refinement
levels compared to say a Tata Nano vs say something like a Honda City.
I am not taking a Benz or more costlier cars in picture as I know
there would be much better DACs in the market. So, yes, the xmod
might sound coarse but the uDAC will sound smoother and carry the
details with more finesse.
I used to think the DAC on the HK AVR 330 is good and had always
connected my AV sources via optical/coaxial connections but after
using it for so many years, I now find that it had been lacking
the lower mids and the lows. Bass is weak. Highs are OK but lacks
sharpness. All this I was able to distinguish because of the uDAC.
I could hear the difference when I connected the uDAC between
the source and the receiver. Also the uDAC seemed to bring the
vocals more forward and clear.
I had to reduce the bass on my z5500 when I connected my uDAC. I
did not observe a change in the highs or mids but the bass seemed
to be more balanced and not so loose with the uDAC. The mids were
lacking and that could be attributed to the satellites themselves.
That said, the uDAC is an excellent option especially when you
are planning to pair with a headphone or IEM and like in my case
could be substituted for the DAC in a receiver also but I enjoyed
the uDAC + IEM combination more than the uDAC + receiver + speaker
combination.