The Horns Symphony loudspeaker if not a horn speaker. It is a hybrid speaker that includes a horn. Horn bass is the icing on the cake.
Great review on HORNS Symphony Loudspeaker for you "aficionado's" of horn speakers
My colleague Mike Wright, at Stereo Times website, has a superbly written review on the Horns Symphony Loudspeaker that just was posted today. If you are interested in horn speaker designs, you should take a look at Mike's take on this speaker for all the details why he was sad to see it go back after his reviewing process.