you do need to be careful to not fry your sub amp......grounds and hots hyper critical.....
What do you mean by this?
Also, just got my TS plugs last night, so itching to see if a simpler run from the pre-amp to the amp (although now unbalanced) improves sound quality.
I do have an open floor plan in my main listening area which is open to the kitchen/dining room, so I have to deal with blenders, running water, and screaming kids, so not conducive to critical listening (It's actually rare when I get the house to myself...grrrrr...) Hopefully I will be able to do some good tests in the next couple days, however.