Wayne Parham Messages: 18786 Registered: January 2001
Illuminati (33rd Degree)
You can put the tweeter horn on top as long as the woofer/tweeter distance is maintained. The way to do this is basically to flip the box upside down. But honestly, I wouldn't do this when using the H290. When using a wood horn, you can do it for aesthetics but I don't think it makes sense with the H290. When using the H290, it's better to mount it on the baffle, in my opinion. Baffle mounting actually smoothes response just a smidge.