Very good, beautiful pictures. I used that Radio Shack tweeter when I was in the USA and loved it. Powerful, crisp and bright. I had a speaker very much like yours with Fostex main driver in large horn and this super tweeter. That was a very good sounding speaker.The Radio Shack super tweeter horn handles 40 watts if I remember, but if you do not use their built-in LC crossover you can damage it with very low power. Be careful with a 1.5uF cap because it can probably only handle less than 10 watts. I could use it with a 45 amp no problem, but detroyed two pairs of them with my 845.