I asked Twister6 about his opinion of the IFI micro IDSD (Dac-Amp) yesterday and those who are interested can see what he says below.
My question was:
I was wondering if you were getting channel imbalance at lower revs as others have mentioned?
What is your initial impression of it - some prefer it to the Mojo and others think it can be a bit bright?
His answer was:
" Yes, starting to work on Micro review now! Channel imbalance with analog pot is normal and rather common at a very low volume when you turn the power on. I'm so used to it, don't even list or consider it as Cons.
I don't have Mojo, but heard about it being more analog, smoother, warmer. Micro IDSD has a very analog smooth sound characteristic, neutral, maybe with slight hint of warmth. I LOVE it!!! Burr Brown dual DAC does its magic, and iFi paired it up well with their amplifier stage. But surprisingly, I'm not as crazy about amplifier by itself when connecting LO of another source. The amp section is tuned to pair up and to compliment the built-in DAC, and a bit too smooth with external DACs of other DAPs I'm feeding it into. Thus, I prefer to use Micro with Optical 3.5mm mini-toslink or COAX inputs to take full advantage of that awesome DAC/amp combo. Of course, it works great as USB DAC connected to my laptop."
http://www.head-fi.org/t/755971/twister6-audio-review-index-the-past-the-present-and-the-future/120#post_12442772