yes possible, see my blog:
https://www.tonstudio-forum.de/blog/ind … our-Setup/

See also this RME video: https://www.youtube.com/watch?v=doHG32aXBDY
"Mastering Engineer Marc Einstmann specialized in high-end mastering and restoration services gives us an insight into his setup and why he uses different AD/DA conversion technologies. "

Best try it out yourself.

RMEfanboy wrote:

ramses wrote:

Best try it out yourself.

Thanks. Yeah... I wish I could try em out...! thanks!!

I’ve read through your other 35 posts here:
You’re sneaking around the ADI-2 Pro from the start, you really want it.

Go and get it!

ADI-2 Pro will complement your existing setup with the best possible AD and DA conversion.

It’s unique DSP and other features will allow you to use the more musical “Slow” filter for conversion, while the DSP can correct these filter’s treble rolloff.
This gives you the best of both worlds, perfect frequency response AND very good impulse response, resulting in an audibly better musicality.
No other converter can do that, usually one excludes the other.

ADI-2 Pro’s headphones outputs are real “high-end”, by far superior to UFX’s.
Powerful enough to clean-drive EVERY headphone on the market with ease.

The whole ADI-2 Pro is reference-/master-quality.

Ramses had shown how to perfectly integrate ADI-2 Pro in your existing setup.

> 1. Would you ADI-2 Pro FS conversion is the 'same' or 'better' than UFX+?

better on paper. in reality you won't hear any difference

> 2. How is ADI-2 Pro FS's headphone amplifier performing? Would it be considered as very high-end headphone amp?

very high end indeed. Plenty of power and very low noise. zero output impedance.

UFX's phone has 30ohms output impedance so if you have a low impedance (<=240ohms) headphone you'll have a problematic frequency response curve.

> 3. Does 'adding ADI-2 Pro FS' simply make my analog A/D recording and D/A monitoring level much much higher and this setup would really upgrade my current setup?

ADI-2 Pro FS's level is +24dBu、+19dBu、+13dBu、+4dBu.
Fireface UFX : input:  +19 dBu,  +13 dBu, +2 dBV / output: 24 dBu, Hi Gain, +4 dBu, -10 dBV

so no. it won't give you much higher level.

In a nutshell, ADI-2 Pro may give you a better HP amplifier, lots of new features for HiFi settings (crossfeed, 5band eq, loudness, deemphasis,  etc). Getting a separate HP amplifier (today a sub-$300 THX HP amplifier can easily outperform ADI-2 Pro's)  could save you some money, but you would lose all the amazing features provided by the device.

> *And I am only interested in spending my money for upgrading my conversion A/D & D/A 'significantly'...

Fireface UFX has 
AD: THD < -110 dB and SNR =110 dB RMS unweighted
DA: THD< -104 dB and dynamic range = 115 dB RMS unweighted
all IOs have different gain level settings to maximize performance at all levels.
So, it's already sonically transparent. This means even if you get something better you won't hear the difference.

The HP output, on the other hand, is quite old tech so if you have low impedance headphones or if you need more power, upgrading it may make a difference. A separate $250-$300 HP amp can fix the problem entirely.

It is very difficult to impossible to predict whether you will really have a better sound impression with the ADI-2 Pro FS R BE.

In my opinion it depends on whether the other components in your signal chain are able to reproduce these subtleties at all and how it looks with your hearing (what the ear can still perceive and whether your ear is trained accordingly).

The ADI-2 * alone will not make a Geithain RL906 or Neumann KH 310 or KS Digital C55/C88 or Event Opal out of an active loudspeaker in the price range between €200-800.
To what extent the respective high-quality speaker can fully develop its capabilities depends, among other things, on the room acoustics.

In one point I can reassure you, although I have here at home also a rather poor room acoustics ("bare walls") you can hear the qualities of excellent components very clearly, not only good stereo panorama but you can also hear the very good depth gradation, if the speakers and the components in front of that also give.

But what to answer you now. No one has exactly the same preconditions with you. I can only tell you that the playback quality depends primarily on the source material and then the weakest link in the chain will be the limiting factor.

If someone says, so the ADI-2 Pro gives me no difference, then that can be true (maybe because of limitations of other components in his particular signal chain or hearing capabilities), but I know another report from somebody I know with Yamaha HS8 monitors, that you can hear a clear difference to the previous RME product (can't remember which recording interface, maybe multiface). All I want to say is .. "it depends" ... "there is not only one absolute truth" valid for everybody.

You do yourself a favor to just try it yourself ;-) Or take a die and roll it ;-)
But to go on about it in text form and to theorize about it makes no sense at all in my opinion. You simply have to perceive and experience sound. It's also hard to write about a guitar, how great it plays or sounds, you have to take it in your hand, these are "organic things" somewhere, which can't be fully determined by any measured values.

And the sum of the resulting quality is always the sum of the individual components and the weakest component limits the total quality. In Formula 1, you can only achieve a victory if everything is well coordinated.

So maybe better stop asking, instead of this become active yourself and check it out for YOU personally, in YOUR environment using YOUR signal chain and listening to YOUR audio material.