Does this receiver have enough power to drive either one of these speakers to there potential? Would either of these be a great combo with this receiver?
Your receiver supplys 75wpc which is plenty for high volumes and no distortion with these speakers. I don't think you'll be dissapointed with either choice though my vote goes for the JBLs.
The Infinitys sound very clean for their size, but I prefer the jumbo sized Studio 38s. Even though the S38 is a 3 way, the sound is very smooth and balanced. Not to mention an 8" woofer to add some punch.