Duelund hook up wires in a Sonus Faber Cremonas speakers??

Gannyring...All at 16ga or should i do the tweeter at 20ga, mids at 16ga and woofers at 12ga.  What's your take on this?. Do you recommend stranded or solid core copper?

If i want to do a 12ft main speaker wires, should i also do the tinned copper stranded 16ga?   Or do you recommend the bigger 12ga for main speaker cables.    With tube amp, should i stick with the smaller value?  I will be driving the Cremonas with my vac 30/30 push and pull triode amp.  Please advise? 

Thanks all for your recommendation!

I was just curious?   Any members try the duelund foil 1.0, 2.0 or 3.0 flat silver wires?  Can it be use as main speaker wires?? Please advise?? 

Grannyring... on main speaker cables, each channel single run of the 16ga stranded tinned copper or you recommend 3 runs per channel.  
I need 12ft long from amp to speaker.  What is your suggestion??