Anyone have the Answer?

Thanks for even more good ideas to try!
The baking analogy is something that hit home.

Some clarification please:

1. If I try an excellent power cable to my Streamer or Dac or AMP-
(Which first? The DAC?) and I find I hear a very noticeable
improvement, is that telling me I should start with an AQ/Furman/PS Audio/Shunyata or ? conditioner/regenerator first
or buy better cabling/inters?

I read of those who tried conditioners  and felt the soundstage was negatively impacted. 

2. If I flip all breakers off except the two going to my system
and that produces a very noticeable improvement, does this tell me
I need a regenerator ?? Or just install a new J-box and cut off the
wife when I listen?

3. I am beginning to see which direction to go. I am no E.E. and 
the thought of comparing sine waves leaves me woozy.

Thanks for all the various approaches.

Best,

Jeff

Based on posts here, I'm checking into the Puritan line......very interesting.

@chorus,
Check out Danny Ritchie’s videos (GR Research) on cable building. Very enlightening.

Planning a visit to Danny soon. 
Thanks!