Super tweetie bird on Four Pi's


I'm a young feller and can hear pretty well in the upper region 16-20k
The theater four pi's are listed as 25-18k. How steep is the roll off up there? Anybody ever measured it?
Anybody thought of augmenting a piezo or a eminence APT Supertweet?

Jeez I sure talk a lot for never having heard them...


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