Your associated gear is limiting the effect you will hear by rolling tubes in the Jolida. No disrespect. It's just the way it works.
As any system moves toward higher end gear, the system's ability to resolve detail increases...like that which would be heard by rolling tubes.
The audible effects of all tweaks, including interconnects, speaker cabling, power cords and isolation, will be difficult to discern.
It's probable that you will hear differences by rolling tubes, but the differences will be less obvious as they would be with different electronics and/or speakers.
As any system moves toward higher end gear, the system's ability to resolve detail increases...like that which would be heard by rolling tubes.
The audible effects of all tweaks, including interconnects, speaker cabling, power cords and isolation, will be difficult to discern.
It's probable that you will hear differences by rolling tubes, but the differences will be less obvious as they would be with different electronics and/or speakers.