Below is a picture of a double horn single driver project.

But it is a trick photo: Look closely and you will see
a mirror image of the bottom part of the enclosure reproduced
on the top-- upside down.

I still like it.

But there is a lot of questions how to make the compression
chamber for a single driver with a top and a bottom horn mouth.

Maybe Sir Fitz will take an interest in this.

• Faux Double Horn