[Peter Wieck]

On Sunday, June 26, 2016 at 11:13:02 AM UTC-4, Patrick Turner wrote:

That looks like a horn loaded speaker. I don't have details. But a guy here tried to make a pair very similar for a 5" full range driver. No matter what amp he used, the sound was very poor and well below the quality expected, ie, he ended up with "expensive firewood" so you really do need to be some kind of expert to succeed, and enclosure resonaces can be quite a bother.