I have my Accuphase E-650 plugged into a balanced power transformer (Shindo Mr. T). I am using a pair of Mr, T’s, one for all source components and other one for E-650 + phonostage. To my ears, I prefer this configuration better than E-650 directly into the wall. Keep in mind, not all balanced transformations created equal so your results may differ.
What I’d recommend, try both configurations. When plugged into Equi=Tech, listen for transient speed, low end grunt and dimensionality. You may also hear lower noise floor even though Accuphase are dead quiet. I was able to further lower noise floor by installing isolation feet’s under E-650.
If you hear E5000 more alive or dynamic directly into wall, run your front-end gear on the Equi=Tech and leave the amp direct.
Have fun and report back your findings!