Long ic or spkr cable to surrounds?

Long XLR IC to rears is the way to go.

KF

If the rear surrounds are going to be dipoles no big loss running 30foot lenth.If the rears are mono poles like the front LCR I would go with a long ic and short spkr cable.I feel mono poles would suffer more than dipoles.

Here we go again...! If you must run a long interconnect, a balanced configuration is preferable. Since speaker output is much greater than line level, there should less loss in a speaker cable than an interconnect over the same distance. Many variables are at play, but as a general rule of thumb, use the largest gauge speaker cable you can for a long run. Opinions definitely vary on this subject though!