Eminence APT-200 Super Tweeter with 90° x 90° Bi-Radial Horn

The output, clarity and dynamic range is better than I expected.

This great speaker works well down to 1.5K, presents high voices loud and perfectly. It has long projection and is worth an extra week to receive the order. It seems a little over priced but in this case you get what you pay for.
http://www.eminence.com/pdf/apt200.pdf

This is a high quality performer, however if it's to be mounted from the front of the baffle, a snug cutout takes on an odd shape. The holes are 5 and 1/8 th inch on centers. To make a template from my jpg just enlarge it till the holes are the above distance apart in both dimensions and then follow the inside hole as the cutout. Have fun, the unit is well worth the effort to install. I also found that a 5.4 uf cap works well. I posted a sample on the blog titled, "APT-200 Template"