Another Zu Thread

Sorry - I'm sure this is in the archives, but I've been reading them for several hours and haven't come up with anything super definitive.

Can anybody comment on what setup works best with the Druids and/or the Definitions? I have read >10ft to the listener for the Definitions.

Does the floor material matter? I have read that they need to be placed on hard surfaces, not carpet - true?

They appear to work in a fairly standard triangle pattern - separated by X feet, user seated Y feet away.

Toe in? Do these speakers do the "head in a clamp thing" or does it support multiple listeners reasonably well?

Distance from back / side walls?

Any help would be appreciated, either in direct answers or point me to a thread that discusses all the physical setup issues.

-Kirk