Droz, I understand your goal with the CS6s being increased bass control. These speakers are fully capable of very deep and dynamic bass response but they need to be fully controlled by an amp that can act as an unfazed current source down into the mid 2 Ohm range. This is a matter of physics. There are only a handful of amp designers and manufacturers that can meet this requirement, and, as Rtn1 puts it, these have well been mentioned in the above amplifier listings.
So again, it depends what you are trying to achieve, but I guarantee that the Rogue amps will not do to the Thiels what the Krell FPB series of amps can do for the Thiels, no matter how you slice it. I know, I have tried other amps with these speakers; they are electrically demanding and require stout power supplies that provide sufficient current at low impedances and that property cannot be afforded by tube designs. If you want the bass you cite, this is the direction, high current solid state, that you must go plainly and simply.
So again, it depends what you are trying to achieve, but I guarantee that the Rogue amps will not do to the Thiels what the Krell FPB series of amps can do for the Thiels, no matter how you slice it. I know, I have tried other amps with these speakers; they are electrically demanding and require stout power supplies that provide sufficient current at low impedances and that property cannot be afforded by tube designs. If you want the bass you cite, this is the direction, high current solid state, that you must go plainly and simply.