In all fairness, I could not speak to the 755 as how it would match your system.
I am sure it's a fine amp.
You may want to check out the reviews on it in the forum and elsewhere, and learn more about the nature of it's sound.
I am running a B&K REf amp, 3 ch, the 3220 with an M&K speaker system. They complement each other very nicely. I am ruuning the inexpensive Audiosource AmpOne for my 2 surrounds. I wanted a cheap way out in case I decide to go to 6 or 7.1 at some point.
The 950 was my first break into separates and it is a welcome change.