Ya actually thats where i got the idea except im doing it with my midrange which requires an enclosure.You mean like this?
The PVC end caps work very well as tweeter pods.
From what i've seen in the DIY home audio world, speaker builders round-off t he back of their enclosures, kinda like how a pvc end cap is shaped. Not sure of why this is better but thats what they do...I had considered this also but 2 things bother me. First is the room for the air flow from the back of the cone. Second is that a circular enclosure seems to be a perfect setup for standing waves since all sides are equidistant. I read somewhere round enclosures were absolutely the worst shape. And many speaker manufacturers take great pains to not have any parallel surfaces in their enclosures.
Just some thoughts, someone smarter than me can comment if I am out to lunch on this.
Not sure what you mean here. Are you saying the enclosure doesnt open up/widen and that it would be like a tube?2 things bother me. First is the room for the air flow from the back of the cone