Hooked up Shiit Mani incorrectly

A good place to ask these kinds of questions is the people who made the equipment.

Continued to troubleshoot the amps by disconnecting the inputs to the amp leaving the speakers connected then powering up the system the hum is no longer audible. Does this mean the amps are ok?

horsestuff OP  No guarantees, but amps generally have fairly robust input circuits since they are designed to work with variable volume. They might have survived the onslaught. It's definitely a good sign that the hum is absent with no input source.

@horsestuff 

Interested in your follow up.  Sounds like all the individual components are working OK?  Have you put your system back together to try it out?

Contacted Shiit tech department to see what they say. I'll post their response