Assuming that you aren't amp limited...
I believe you would increase the headroom of the system significantly with a high-pass. This calculator (below) indicates that the necessary excursion of a driver producing 40hz is 4X greater than the same driver at 80hz. This would probably clean up your bass and midrange also.
If your speaker manufacturer uses the same tweeter in a larger 3 or even 4-way design, I would expect it to breeze along just fine.
http://www.baudline.com/erik/bass/xmaxer.html
I believe you would increase the headroom of the system significantly with a high-pass. This calculator (below) indicates that the necessary excursion of a driver producing 40hz is 4X greater than the same driver at 80hz. This would probably clean up your bass and midrange also.
If your speaker manufacturer uses the same tweeter in a larger 3 or even 4-way design, I would expect it to breeze along just fine.
http://www.baudline.com/erik/bass/xmaxer.html