well, well, just yesterday, after setting my system back up friday night, and re- breaking in my speaker cables and speaker cable jumpers that are state of the art, I could hear a small difference in my right speaker compaired to the left, now friday night I was drinking heavy, celebration of 2 years and 8 months of dealing with my amp came to a wonderful close, so hell yea, I am going to drink!, back to yesterday, I was sober, after hearing a difference in the sound, I walked up to both speakers and evaluated the connection's, whoa and behold, only one jumper on the right channel, the negative was turned the wrong direction, instead of the signal going from bottom post to top, it was backwards, shut down everything, flipped the Tara Labs Omega Jumper correctly, bam, the wife says, what did you do now, I said why, she said that the sound now had fuller vocals and way more detail!, that said, over a year ago, we tested all the jumpers at the same time going the other direction, when we did that, I remember the wife thought then that something blew up because the sound was hugely poor, a much more difference then just one jumper out of place., cheers.