Amp Q: More power to RF-7s or RF-83's? Possible to over-feed RC-64s?

[RamoIjjah]

Hi All,

I'm a reader but new to posting, please forgive if I posted in the wrong area

I have a Cinepro 3k6 SE which can supply 400 watts x 6ch at 8ohms or ~800W x 3ch @ 8 ohms.

I also have a Rotel 1090 amp which can supply 380W x 2ch @8ohms.

While
bumpin Blue Man Group "Audio" DVD-A, I've noticed that my RF-83's will
occasionally ignite the red clipping lights on the Cinepro if it's
supplying just the unbridged 400 watts. No problems with the full 800
bridged setup.

Two questions:

I recently got my hands on a
pair of RF-7s as well, and have to decide which goes to the Cinepro and
which goes to the Rotel.

What's the best way to wire these suckers
in? Which set of speakers would benefit from the extra kick supplied by the
Cinepro most?

Also, can my RC-64 handle the 800W channel, or should I leave it on a 400W channel?

Thanks!!!