Ok here's how you do it.  Forget the video on how to use Fireface and Cakewalk, it's somewhat confusing.
1.  Go into the matrix view of the fireface software
2.  Define your inputs and any outputs you might be using.  The inputs are most important as they will be the channels that are sending informaiton to Sonar / Cakewalk
3.  Head over to sonar and set up a new project.  Make sure your fireface is registered as the input device in the options section of Sonar.
4.  If the fireface is the input device then on each channel of your project you can assign where the channel / track is to receive it's info.
5.  When you look at the available inputs from the fireface they will be labled at 1 left, 1 right, 1 stereo, next one will be 3 Left, 3 right 3, stereo
Notice 2 is missing.  The fireface takes each input and allows you to divide them as 2 mono channels or one stereo channel
This should pick up all of your inputs and allow you to individually manage each channel.
 
I will be playing around with the Playback option.  It should be just as simple.  Unfortunately the folks at cakewalk have been little to no help on this topic and the folks at Fireface have been equally void of assistance.  I'll update this inquiry once I play around with the playback.  The important area you need to read in the Fireface manual is the section on the matrix.  The matrix will give you a graphical layout of the inputs and outputs. The thing about the UFX is you get a host of choices and there is really very little in terms of an overview of how it actually all comes together for recording.
Hope this helps people in this thread
Sheldon

I have a UFX - never used it in the studio other than via ADAT (it's in my mobile rack) but I do run an old RME HDSP9652 in my studio and that thing is beyond reliable. Live the UFX (with PT9 as DAW on my laptop) has been the BEST investment I have ever made in gear. I run USB.

Jim Roseberry


The UFX is excellent! (as are all the derivatives)
Exactly what you'd expect (rock-solid and great sound).
 
Note on USB-3, the latest firmware for the RME units allows them to "work" when connected to USB-3 controllers.
That said, if you're pushing the unit hard at ultra low latency settings, you'll achieve better performance connected to the USB-2 controller that's integrated into the chipset.
ie:  If you plan to use the unit at a 48-sample ASIO buffer size, don't connect it to a USB-3 controller.
 
If you have the budget, the UFX will easily last you a decade.

Jim:
I  have been looking at this to replace the DACS in my remote rack #1.  I had an 800 and loved it.  Honestly scared to death about USB - I suspect I'd never use it - might I be too narrow minded on that?
-D

My UFX experience.
Took delivery Friday, connected it to the USB2 port; successfully installed latest drivers and firmware.
Tested at 48 samples, all good; I did not however "stress" it.
Re-routed the rack ALL day Saturday (this is all Bapu's fault btw).
I will begin to record with it this week.
I left my FW-1884 on the FW port for continued use as a control surface.
I too was "suspect" of USB performance, but RME is convinced it is at least as fast as FW.
According to RME USB uses 32 "hidden" samples and "64" when using Firewire.
The included "TotalMix" software is very powerfull and allows "hardware" like zero latency monitoring;
in efect it is a software "hardware" mixer. (the only thing you don't have is analog inserts)
TotalMix can be a bit confusing at first, read the manual carefully.
I work with the Hammerfall in another studio so I had a "basic" grasp of its potential.
This is now their "flagship" product and as Jim has said "the UFX will easily last you a decade".
Given RME's track record I suspect that and maybe then some.
HTH
T

Hi Miguel,
 
I'm happy to see a fellow X2 user have some success with the UFX. I have an identical setup to yours but after taking delivery of my UFX last week I still can't avoid dropouts - even at a latency setting of 1024. My PC is 'optimized' so to speak in every recommended way... I've even tried re-installing everything from the ground up, but still no luck (UFX firmware and drivers are current)
 
May I ask - did you have this problem initially? And did you change any of Sonar's Config settings to improve performance?
 
I have been pulling my hair out for days here.  :(
 
 
Thanks again for any advice (mercy) you can give.
 
 
Regards,
 
Nathan

Hi Nathan,
 
First, make sure the UFX is connected to a USB-2 port.
Some USB-3 ports work ok... but lots of 3rd-party USB-3 controllers don't
 
Next, check the DPC Latency on your system.
Google search for DPC Latency Checker (it's a small applet)
If there are spikes in the yellow or red, you're virtually guaranteed to experience glitches/dropouts.

I am using the UFX without issues. I love the versatility. Excellent choice for an interface!

running a ufx with win7 sonar x2, winxp 8.5 with a 8 year old computer, intel dp35dp, q6600, TI firewire. i leave the buffers at 1024, I track real time all the time. 50+ tracks mainly audio! never a problem. hey if it aint broken!!!!!!!!!!! 

Make a recording with rme digicheck. Does that work?

I have RME UFX and I use it for the recording portion of my work ( I mix somewhere else) and works flawlessly. I had Focusrite Saffire 56 and the quality and interface and routing are superior.   And yes, I CAN hear a difference.   One major important difference is the line ines do not go through preamps so if you have outboard pre's you won;t get any (ok admittingly minimal) coloration from the interface itself.   The head phone amps and converters are cleaner and clearer.  My monitoring headphone mixes are so much better now and the totalmix SW is great.   It has excellent DSP which really works well for headphone mixes for tracking.  Reverb, compression etc.    YOu don't "need" it but when you have it, it really works well!