Who makes coax speakers?


I'm  wanting to maximize vertical dispersion in my speakers so that I'm not forced to sit when listening. I understand that this limits me to coax or singledriver speakers, the later of which I already have and I'm looking for better frequency extension. My room isn't large enough to properly support omnis.

What brands manufacture these types of speakers, or anything else which would fit my situation? I'm aware of Gradient, KEF, and Tannoy. Likely to buy the Gradient Six speakers unless I'm missing a better option. Seas makes all manner of coax drivers but I'm unable to find any brands using them, why is that?
redfuneral
Post removed 
Genelec 8351 is coax has equivalent of a 10'' inch woofer

On the 4th May they released 2 smaller versions of the 8351
They are powered with DSP and can be placed vertically or horizontaly


Just got done designing a Kit for Seas/Madisound using the 7" Reed Cone Coax and two of the 8" Alu cone Woofers, Plans, Crossover schematic etc will be up on the website shortly.  The finished product will be on Display at LAAS in June in the Madisound booth along with the ScanSpeak B741 kit I designed for them a few years back.

Good Listening


Peter   
" a planar speaker will do that very well - a Magnepan ribbon tweeter will act as a line source "

Not everyone can bear to listen to those aluminum ribbon tweeters. He also doesn't have that much room to work with.