The Köchels are a three way horn. They use 12" woofers that are horn loaded. The midrange and tweeters use compression drivers. I have had them for a little over two years I think.
The Atma-Sphere amps I've had 4 1/2 years. The preamp a little over 3.
As for photos, I dropped my digital camera last spring and have not yet replaced it.
Very nice! I'd love to see some pictures if you have any. How long have you had this configuration? I don't know anything about the Kochels. What kind of design are they?