I've been looking around for a DAC replacement for my Xonar D1 sound card for my PC. I actually like my D1 and I run it through a Matrix M-Stage amp so the high output impedance isn't an issue. Any ways, I came across the Meridian Explorer and was very impressed by the reviews. I also saw that some people were having trouble connecting this to their iPad and I think it is because the DAC is capable of 24/384 Khz. I read on a review for the Leckerton UHA_6s that iPad's can handle 16/48 Khz outputs and that is why the that DAC has supports a 16 bit DAC.
Here is that review.
I'm not familiar with iPad support but it seems reasonable to say that the issue is with the output bit rate. However, it might also be that higher bit rate DAC's just draw too much power.
Has any one tried to rework this circuit a bit to accommodate a battery (not including a USB hub battery setup like posted a few pages back)? This board is small enough that, if you wanted to use this as portable DAC for an iPad and PC, you could just get a slightly larger project box and wire in a battery with a charging port. I've read some reviews that say that the Meridian Explorer benefits form cleaned power, and a battery would be a practical easy solution for this (and any USB DAC I guess).
Edited by keabler - 5/19/13 at 12:53pm