I know this isn't the answer you're looking for, but it's really not about sound quality anymore. I think the answer is that a great engineer, working with a great producer, with great session players (or a great band), in a great room, performing great songs, could make an incredible record with a Digi 001 right out of the box -- regardless of what pre's, converters or even plug-ins they're using. If you want to achieve great quality, the key is to practice your craft for many many years, spend time with people who are more experienced than you are, and -- more than anything else -- LISTEN. Sorry if you find this response patronizing. I'm just calling it like I see it. Take care, Glenn