My Question to Yves Usson via email:
"I was wondering if you might tell me if the CV specs for the Minibrute are the same for the Microbrute in terms of voltage min / max? I would like to interface them both with other CV components safely and efficiently. I could not find this information via manuals for either or on the Internet or Arturia forums."
Yes they are the same and they can be safely connected to other CV external components.
These are Yves Usson's responses from a Minibrute thread in regard to Minibrute CV tolerances which apply to the Microbrute also:
"CV input range is from -5 to 10V"
"Normal range is 0 to 10V"
"A negative voltage (limited to -5V) will not harm your MiniBrute" -- "for example the VCO will run like a very slow LFO, or the filter in LP mode will mute all sounds"
Other interesting bits from Doepfer about DE Version I CV's:
the Dark Energy cannot be damaged if the control voltages are in
the -12V...+12V range. The VCO tracking will not be very good beyond 0...+5V
but nothing can be damaged.
I haven't gotten a response from Mg yet about their modern table tops and CV, but I'll post any info I get when I do.