Pops Backflow

Regarding the grounding. I'm glad Bob chose the grounding method he did. It may be old-school but it's the safest for everyone. 

When I got mine, I opened it up to re-do the ground, it's the 1st thing I do with earth grounded equipment because my house is old and does not have grounded outlets. It was pleasant to find that Bob did that for me. Thanks Bob you may have saved my life.

Earth ground is assuming everyone has grounded outlets and that those outlets are wired correctly. 

There is no excuse for shipping the amp in that condition. Wired for sound needs to address Q&A.