jsanfilippo5,
Could you let me know where in the manual it states that? I was unable to locate it but if it does say that, I would like to correct it ASAP.
On page 16, in situations where high level only connection is possible, we recommend running the main amplifer speaker cables to the speakers. Then either run another set of speakers cables from the main amp to the high level ins on the sub plate amp OR run a short piece of speaker cable from the main speaker binding posts to the sub plate amp high level inputs. Yes, this does run a full range signal to the mains however this is better than running the signal through the sub plate amp first and then onto the speakers as that can cause some smearing and possibly a hole in the frequency response.
Thanks,
Sean