I'd like to see a line of XBL^2 drivers for building full-range speakers (I mean a tweeter, a couple woofers, and a full-range driver). One driver I'd like to see is a 1" silk dome tweeter. You could make an incredibly-detailed tweeter with such a powerful motor structure. Another idea is a 4" full-range driver. I think that the powerful motor that XBL^2 makes possible would be a great thing to stick on the back of a full-range cone. You could also give it a high excursion (like the 4" woofers found in computer subwoofers) to dip down into the 50Hz area. I also want to see some XBL^2 woofers, like say a 5.25" and a 7" or 8". These should have faily decent excursion, say like 4mm on the 5.25" and 6mm on the 7" or 8". I think that the XBL technology isn't being used to its full potential simply by building it into subwoofers - it should also be incorporated in some regular drivers.