I read that review of Steve's incredible ODSX and Plaskin calls his QX5 a bit forward. I don't get that in my system at all and I have an Ayre AX5/20 running it. If a recording is mastered forward, then it will give me that. If it's not, then it won't present that like many others will.
You have to ask yourself, if there is no depth to the recording, can a DAC synthesize depth?
I think it's kind of like asking the DAC to deliver detail in a recording that is not there.
I think it is more likely that the improved depth is the result of a better D/A. The ODSX is more expensive, so you should expect that.
Steve N.
Empirical Audio