Doepfer

But the lower price is attainable only
> if the module contains only one HSVCO for both BBDs. Otherwise the price of
> the double module will be nearly the same as for two single modules.

This also depends on which current modules can be used to alter 
the HSVCO-output, the a-163 probably not, but maybe the a-151, a-
196 or a-160? But I prefer single anyway