I luckily came across a pair of Ruana Njord home speakers not to long ago and absolutely love them! They are concrete and have a very controlled sound to them because of this. The problem is that at one time one or both of the tweeters blew and so new tweeters were put on. They sound sub-par (one is a seas which sounds very good, the other does not; yes, it is a different brand of tweeter on the left side, LOL). So I am interested in getting a tweeter that will mount on the top of the speakers. I know Morel has something that works like this, but are there others out there that I should consider? Thanks!