Yeah I wasn't thinking about the current draw from the DAC, probably because I am using a powered hub now
![cool.gif](http://files.head-fi.org/images/smilies/cool.gif)
Thanks for the info. I also just read your T3 review.
Can you compare the line out to the headphone out (at 100%), both amplified with the Slim?
When I compared the HPO by itself, to the digital out (with my entire laptop rig), using my 250 ohm '03 880s, there was no "WOW this is better" from the digital source.
AI believe there are some known issues with the HRT DACs and underpowered USB Hubs. My HRT Streamer 2 (not Pro) was distorting and cutting out when running off a Mac Mini's USB hub. I switched to a powered USB hub and it worked fine. It was a huge leap in SQ only insofar as it operated as it should (i.e., it didn't sound like ass). I wonder if that's what was going on with in the review you read.
if you're going to use the HRT it would appear that you need the powered hub to ensure you are getting the actual specified performance of the device.
I was able to get my Predator working with the iPad camera kit> Dt. Bott T3> Predator. One thing I noticed is that with the new OS it seems that once something is attached to the connector you can't increase the volume. Thus, you need to do this before you connect everything since the Predator needs the volume to be at the max to work.
While it does work, it is not an ideal portable set up - too many pieces attached to the iPad, especially for airplane travel. It is time to look for plan B.