I am upgrading my Pre's from the pre's in a Mackie 1402 to a pair of GT Bricks. The next step is upgrading my M-Audio Quatro. I am leaning very heavily towards an RME HDSP 9632. The question is this. Is there anything out there soundcard wise that is better in terms of sound quality in the same ballpark pricewise? How much of an improvement does this upgrade represent? I believe it to be a significant improvement but I also don't want to piss away money for nothing. Comments please....... For reference purposes. 2in / 2out is sufficient. I want the higher rates for certain application where voice or instrument are exposed in a mix and absolute top shelf is required.