I keep my Alembic Stanley on one stand and my old beat-up Ric 4003 right next to it.
In my opinion, there is no way to duplicate the Cygnus X-1 sound on anything but the Ric...the Ric sounds downright offensive and raunchy.
However, the Alembic fills out the rest of the entire tonal spectrum beautifully. As far as I'm concerned, they're both heads of the Cerebrus of bass.