Been too busy to even read anything since the link to the Stereophile review. So you all are spared.
As I said, the favorable review indicated they were listened to properly. I know FOR A FACT they were measured in free space. JA told me so.
Did not matter to anyone who bought them since all they had to do was send them back if not happy, just like The Truth.
About the block diagram. well, I invented the thing. I did not borrow ideas of how to build it. The Lightspeed was inspiration but so seriously flawed I went in another direction. I did build one (he posted plans and encouraged it at the time) and then an improved version with buffers but the optocouplers were a MAJOR problem. Matched pairs? Uh, no. The Truth does not require matched cells, they just need the same specs. I spent a considerable amount of time and went through more than 20 pairs of various photocells before I was happy enough to let Helen hear it. I had no one to help me in the selection of photocells. I had to learn about them and as I did I got closer to what I wanted. I started to see a relationship between what I was hearing and their specs.
I could care less if someone figures it all out and builds one for them self. I see no reason I should make it easy for them however, no one made it easy for me.
I do not build them "to sell". I build them for people that want one and if it does not kill what they have all they have to do is send it back.
Since I have not checked back in, was the offset on the "review" sample checked?
Ed