The 6300 has 11 channels and amps inside.
It has 3 zone option, (assign 2 to zone 2, 2 to zone 3, and a few other options)
I know it will still let you assign zone 2 or 3 for heights and sb,s etc,,,,, but it also has option to "11amp surround no zones"....
Just wanted some clarification that assigning all 11 amps to surround and having no "zones" wont hurt anything..