Thanks for all you guys tips on mounting Analogue Systems modules in Doepfer frames.
I don't think the alignment of the holes will be a problem, at least nothing a precision drill
through a front plate can't fix...
I will probably soon order the AS Synthi filter.

@Peter Grenader: your module sounds like the business!! Like Johnny Busca was saying try
music house in Utrecht (you've been there eh!). They are the Dutch importers of doepfer
http://www.the-music-house.com/index2.html.

Thanks again

Ernst