Take another look at my link to the Fredarrays and you'll see that I have tested the Fountek ribbons in place of the Peerless domes. The difference is not subtle. The Founteks take these speakers from a nice mid-fi sound, but one that causes listener fatigue, to a really good pair of speakers. When I heard them with the Founteks I breathed a big sigh of relief, because that's what Rick Craig is including in the XTeneded8 array kit he's sending me, only eight JP2's instead of one JP3 per side. And the 7" Vifa XT woofs might sound even better than the 5.25" Silver Flutes, thought the SF's sound amazingly good for the price, better to my ears than the Vifa TC series woofers.