Hi Chad,
Can you do me a favor and invert the polarity (swap + and -) of your speaker cables? I found that doing so on my system (I actually have 2 phase inversions, one for the pre, one for the speakers, so I'm back to "normal") actually seemed to make the speakers sound better. Let me know what you find or if you hear a difference.
BTW, I think the Spendor S8e's sound great with C-J gear. From my very limited experience, I found the MF gear lacking in soundstaging ability, and these speakers seem to be soundstaging champs. With Harmonic Tech cables, the soundstaging is precise, bass is tight, overall sound is clear, full, and sweet-- not fatiguing at all!