Thanks for the information, thats good to know.
I have not used the equipment that you said you might consider. All I know is I purchased one Thingee FX2 XOe6 last Summer and was so impressed by it that I ordered a second one.
I have tried some different products that filter the AC but I found the currently produced Thingee to work very well and the price was right.
Check out my power filtration system that I use, shown in my Virtual system on Audiogon. I started years ago with dedicated AC lines which was a great improvement but I moved on to the following: Xentek Extreme Isolation Transformers
My major AC power filration system. Two 5 KVA Isolation Transformers into sub-panel that feeds all the dedicated AC power into all my music and theater systems. The Extreme Isolation transformers have a huge iron core design, noise suppression is -146 and they weigh 129 lbs. each. The isolation transformers actually sit on three 1-1/2" solid brass audio points that are on top of the cinder blocks and the cinder blocks rest on top of three hockey pucks that are on the concrete floor.
For some reasome on of my circuits was not as clean as all the others, I introduced the Thingee and it cleaned up the problem in a heart beat.
I hope this helps...