Matt, looking at this,"yes" meaning I will need a separate power supply? I just looked at the power supply for the 67C and it is a different connector. Or, did you mean that I should look for a color head for the CB7?
Here is the manual for the Dual Dicho color head. It requires either the standard power supply 8198 or the voltage-stabilized power supply 8191. [These might be in either a blue or a black cabinet, depending on the manufacturing date. Blue is older, black newer. They are the same inside the cabinet]
I have the 67, the 23c , the 45mx and the CB7 they are all different. You need the power supply for your 23 dual dichro. I personally would recommend the color head for the CB7. It has 2 200W bulb very bright and 24V transformer to power those. I replaced the transformer with 2 120VAC to 24VDC regulated power supplies. I have very good power regulation that way.
I'd love to get a color head for the CB7. I'd probably just go with one enlarger at that point. A couple years ago enlargers were like cats, they just kept following me home. My first enlarger purchased was the CB7. In different darkroom lots that I bought, I've ended up with three 23CIIs, a Beseler 67 with color head and an Omega B66. Anyone in need of an enlarger???