I haven't compared the units you are referring to. My response is based on similar components.
Separating Roon Core from Roon Endpoint/Renderer is important and delivers clear performance upsides.
They can be combined but to do so well (as in high performance well) is costly and not easy.
If you are going to try Innuos (I'm not sure which model level), I'd keep the Nucleus to see if using the Nucleus as Roon Core feeding the Innuos as Roon Endpoint is superior to Innuos on it's own. If the Innuos better suits you it will be easy to resell the Nucleus.
In any case, would love to hear your findings whichever path you choose.
Separating Roon Core from Roon Endpoint/Renderer is important and delivers clear performance upsides.
They can be combined but to do so well (as in high performance well) is costly and not easy.
If you are going to try Innuos (I'm not sure which model level), I'd keep the Nucleus to see if using the Nucleus as Roon Core feeding the Innuos as Roon Endpoint is superior to Innuos on it's own. If the Innuos better suits you it will be easy to resell the Nucleus.
In any case, would love to hear your findings whichever path you choose.