Alan2 In my experience Ive heard both speakers using the
right gear,I own Andra1, A friend own CS6,these are both
good,Iam not trying to be biased, I prefer the Andra, they
are more real in piano,string,you name it.Ffries is correct.
They need more power,right now Iam using Viva and musical
fidelity 550 bi-amp.
When I heard your CS6 they were connected to ODDYSEY biamp,
they are match made in heaven.