Norris, I haven't used Jordan drivers for many years. However, I have designed some mini-array speakers using the Bandor 50mm units and can thoroughly recommend them.I have designed a TL version (see link below) but my latest design uses the 50mms in a sealed enclosure and accompanies them with separate bass speakers.
Bandor do a 16 ohm version, as well as 8 ohm and 4 ohms. I have used the 8 ohms in the past but prefer the 4 ohms these days as the moving mass is lower and high frequencies better.
Steve Margolis