[doggiehowser]

Just let the system settle first.

I can’t imagine the McIntosh or the Amati being fatiguing unless it is in the most challenging of rooms.

If anything, I’ve found the Amati sounds better with a more dynamic amplifier.

I’ve had good results with the ARC VT80SE and the PassLabs INT25 but the one I am enjoying the most right now is the Accuphase E380.

Once the system is run in, maybe have a look at basic room treatments and then cabling.

I’ve found Tellurium Q Black range helps reduce harshness. But I wouldn’t experiment with cables until after you have finished running in the gear.