Both are correct. However I asked Scott about seven channel amp vs. 5 ch plus two monos. I wondered if the 2 monos would be better for the front L/R because of independent power supplies.

Scott pointed out that the "sharing" of the seven channel amp's power supply (obviously sufficiently strong for 200w @ 8 ohms RMS driven and x 7) is not seven isolated supplies and that therefore more power/headroom or whatever is available. For example the surrouns are rears might not be "taxed" as much as the fronts and center, and power is available in shared mode, that is not in individual.

But as said above probably doesn't make a difference and you won't hear it. I like the idea of the seven channels in a package. It makes for easier wiring and component placement.

I kept my 755 when I triggered for the 7700. The 755 replaced old Crown amps in another room and made the electrostats there sound like new.