Ribbon Tweeters

Hi, Biscayne. It all depends. I own the newform ribbons and they cross over at 900 to the bass midrange peerless drivers....I've had them setup when you hear the speed of the ribbons not integrate well with the cones[nordost red dawn cable] Then I switched to mapleshade ribbon jumpers on the ribbon crossover and between the two cone drivers and used AZ satori single wire. Now the sound is very coherent from top to bottom. I do not biwire. So that's the challange. In theory a ribbon that has a low cross over[ say 200, should be more seamless but careful design[ crossover, etc, can make for good speakers. The drivers have to match extremely well....You can become addicted to ribbons, the sound is open, free in the air, boxless. I've never heard of anyone unhappy with the extension of ribbons. I'll be interested to hear from others on this...

Who can hear to 50K?

My dog.

Its not really relevant-obviously if its not reproducing a freq. it can't be accurate. But ribbons can go well above 20khz-the ravens go to about 35khz.