One thing I've found with these cheapy drivers is that they have very good response characteristics, they just won't handle a lot of power. When you use a lot of them to overcome the power limitations you end up with a speaker that I've found needs very little, if any, EQ. If I was going to go to the trouble of getting an EQ I'd go with the DCX and bi-amp the system. One thing these dual lines do like is high order crossovers, and the 48dB slope in the DCX seems ideal for the job. The built in 31 band EQ will get that response flatter than flat and with the autoEQ function it does all the work for you and corrects for room response at the same time, including your sub. It does mean you'll need another amp for the tweeter line, but with the sensitivity being as good as it is ten watts ought to do it.