Spica TC-50's vs 60's. Differences + Maintanence.

On the subject of maintenance I believe that both drivers are still in production for the TC-60, but that the TC-50 LF driver (which is shared with the Spica Angelus) is out of production. Whether audax has an equivalent replacement I don't know. Madisound had info on their web page some time back.
That said I own a pretty old pair of Angelus (I've had them 6 years, and I think they were 7+years old when I got them) and the drivers are operating flawlessly. Replacement has not been an issue.
In an interview with Jon Bau he states that the TC-60s were his favorite design, which rather contradicts the statement above that it is not a true Jon Bau design.
I think I could happily live with any Spica speaker, but if I was to buy the Tc-50 I'd budget for a quality subwoofer.
http://www.enjoythemusic.com/magazine/equipment/0900/spicafever.htm

BTW to enjoy the fabulous soundstage they have to be a long way from the rear walls, pretty much along the lines of the Cardas room setup :
http://www.cardas.com/insights/index.html

I would go as far as to say that Spicas would be a total waste of money if you did not setup the room correctly, since there are better speakers out there in terms of dynamics, bass etc for the same money (e.g. Epos). However, with correct setup the transparency and imaging are pretty hard to beat for the price.

My wife made a comment the other day ... she said "We can put your speakers in the living room and tell Isabella (our young daughter) that if she's naughty the speakers will eat her !". Gives you an idea of what my wife thinks of the aesthetics of my Spicas.