Hello All,
I hope everyone is happy and well and looking forward to the Christmas break.
The Scanspeak ring radiator is widely used in various high end speakers. How about a JBL version? What? Yes a JBL version. Why? Just for the heck of it- because we can. Sure we would loose considerbale efficiency, but we would also gain wider dispersion.
Take a humble JBL 2402 (you have sitting around doing nothing- I have a few) and make a new face plate for it (or remachine the JBL front horn) and do the same for the phase plug, completely removing all the horn loading. I am not sure where this would now place the sensitivity, but I would guess it would be sub 100dB/1W/1m.
Take a lok at the pics: