With the run THAT long, why not meet them halfway, if possible. Do a 3 meter Ic and a 3 meter Speaker cable?
10 feet is NO problem for either one.
(PS I almost once moved to an apt with the main room just as you describe. I would have loved it, I think.)
10 feet is NO problem for either one.
(PS I almost once moved to an apt with the main room just as you describe. I would have loved it, I think.)

