Anyone HEARD the qol 'signal completion' device?


An ad in TAS... touting this box. I remain skeptical but would like to know what your impressions are if you have heard whatever it does!
128x128woodburger
thanks for the informative review. You mentioned that it seems to be better on some recordings over others. Do really good recordings sound even better or does it help out the not so good recordings sound better? Or is it just random?
Ozzy, Thanks for that very interesting review. Now that you have changed room treatments and the positions of your speakers, how do you know that the result is from the Qol? What do you hear when you toggle the Qol in and out of the system? When it is out of the signal, is the sound better than it was before you made all of the changes? Or is all of this improvement only when you have the Qol in the loop? Do you also notice a volume change when you toggle it on and off?
Kclone,Peterayer.

Good questions.
I think all recordings are improved. It's just some recordings have a little more depth than others. I don’t even bother to toggle the Qol in and out anymore, but when I did ,there was volume difference between Qol engaged and not.

Once I got the shorting issue resolved the improvement was apparent and immediate. Changing the room treatments and the speaker positions just added to the improvement.
Ozzy does it sound better between amp and preamp or between source and preamp?
Jwm, I have only tried it between Preamp and Amp because I wanted to use the dual balanced outs for my main and JL Subs.