2X6spds....if your running the 504 on Thiels at 4 ohms.
I don't get it. This amp has never shut down until today. With the M80's.
The Polk SDA 1C' run at 6 ohms..i can run them to extreme volume
Its like blow up the speakers before i get anywere near the amp has a problem.

There is no diference in cable or anything..monstercable, Banana plugs....just moved 1 speaker for the other.

Then I'm at a total loss on this... if you can run the Theils at 4ohms..at high volume..and you have no problem. I don't get it.