CMYK Black for PDF

I've made the text 'CMYK black' for a pdf that needs to get printed.
But when I export to a PDF using PDF/X-1a: 2001 (ISO 15930-1) it converts the black to various CMYK values.




How do I export a pdf so that the CMYK black stays black?

Edit: Found this thread.
http://www.talkgraphics.com/showthre...835#post401835

Wiggling the K slider seems to work as a quick and dirty fix for now.

It's always nice when members answer their own questions. :)

A nice and rich black in CMYK looks like this: C:30, M:0, Y:0, K:100