Double blind test- over a month- could this be a reliable test for any equipment?

Forget about DB testing, it is hard to get it right. I second viridian, enjoy your system and music.

Audio is a thousand little religions, all of them right, and all of them wrong.

I once read that a/b-ing by switching back and forth during a track was the quickest way to missread true differences (as opposed to whole track with A, then whole track with B). And this was my experience...but a few people on another forum told me I was flat wrong. I still do not believe the brain can detect the finer differences with rapid switching.