Not sure what the issue with this excellent product is? I have the model just below the top of the line model and I can unequivocally state that this device works superbly rendering a wider deeper soundstage, greater air and just more dynamic realism. My system is highly revealing and for sure tweaked out.
Space Tech Lab super rectifier
I had a chance to listen to this and was extremely impressed for those who also may be curious like I was. I'm not sure how these devices can do this but I can certainly hear the differences, it's not subtle.
Happy listening,
---daniel