I live in South Africa, and own a pair of ARD Time Windows. As I have it the Time Windows were designed by two students in collaboration, and as a final year project. One of the students emigrated to the USA, while the other - a Joachim Fabianek stayed on in South Africa.
I bought my Time Windows and still enjoy every moment I listen to them. Just amazing what they can do with the right amplifier. Joachim told me that the best they can do is being driven by a valve (tube) amp, fed by a high-quality per-amp. At the time he suggested I try a Gunter Steinhard amp. After I listened to the combination I agree completely.
Unfortunately it seems that Joachim has passed on (he lived in East London, RSA), and I can not get hold of anyone that knows anything about him or his family anymore. I dearly would like to try to continue what he was doing. I am not sure, but am guessing that the two students did not collaborate on later designs of speakers. Any info on this will be welcome.
What I desperately would want to get hold of is a pair of Joachim's Aera speakers. If you love the Time Windows, you will be utterly amazed by what the Aeras can do. Even with the brilliant sound of the Time Windows, the Aeras are just so much better. With the advent of the AV sound systems, Joachim fell on hard times. The last time I spoke to him he offered to sell me a pair of Aeras at just over cost price, as he would have liked to organize some income for his enclosure (cabinet) maker. At the time I could not afford them, but I wish I had rather sold my car, wife, house, etc, and bought that last pair of Aera speakers.
I just can not describe the tonal quality and absolute beauty of the music they delivered!
Well, at least still have my Time Windows.
Sorry! Got so carried away that I forgot to say: According to Joachim, the Time Windows were sold as a matched set. Each enclosure had a matched pair of speakers fitted, and this matched-pair had a matching matched-pair for the other enclosure, and that is why the serial numbers will be consecutive numbers.