Right, and I understood what you meant when you said that. I just wanted to point out that you can achieve a more impactful difference in your music by focusing on more important factors that affect quality. Personally I would much rather have the Burr Brown DAC in a component of mine, and I own a Phatbox which supposedly has it inside (although I've never opened it up to verify...), but I know for a fact that the pre-outs on my particular Phatbox are rather weak. It's possible that the CX910 has a stronger set of outputs, which is why you're hearing what you perceive as more 'clarity' at louder volumes. Is the difference you're hearing a direct result of the swap you made? I would say from the sound of it, yes. I would not however consider the DACs inside the 910 to be superior.