Why would anyone want to individually control target curves for different subs in the same room/ system? The goal is to reduce localization, not amplify it. Trust me when I say Dirac engineers are smarter than most hobbyists on this site. They know what they’re doing and their goal is better sound through improved bass frequency response, impulse response and phase/ timing. The software does all the hard work, thus making it as easy and consumer friendly as possible to achieve excellent results.