Ozzy I decided to post the 2nd email since it ties in, the rest if any interest. 2nd starts here. Well Mike another night of testing sonic tonic. Since I had such success placing tonic in resistor area of Wilson Sophia 3 and at the wall of my 2 JL 1300 subwoofers I started there. The reason I had thought of the resistor area in Wilson speakers is the English magazine HifiCritic's editor had his Sophia 3 speakers as a test bed to try different resistors for sound. The Duelund CAST won by a large margin. I totally agree so I wanted to mention that fact that I have those in.Well the improvement was unexpectedly as much or more than first night. I was expecting some improvement but what I got pretty much totally amazed me. When I put a tonic across both tweeter posts and one across both posts of subwoofers the music was tighter and more fluid with both high and low extremes extended. Everything was clearer, easier to understand and everything seemed more in time, even though my stereo already excelled in timing. One example, a favorite blues song has a bass drum that NOW when struck it is so much more distinct and the timing so dead on I could hear leading transient from the tweeter perfectly timed with subs, something I have not ever noticed. All acoustical instruments are improved as well as voices. Extremely addictive. So there I was having only used 8 of the 12 tonics you sent and more than totally satisfied I listened for hours before I finally got curious as to where I would place the other 4. Having so much success at the Wilson speaker I realized I had a Skakti online across both speaker posts so I wondered how much better tonic would be in their place. While playing music as I was testing placement I confidently removed the onlines and replaced with tonic. Hmmm music was less distinct and out of time some with less air. Very surprised so I took tonic back out and music better but with less sparkle and air. Hmmm again so I replace onlines and ahh all good again. So I retried and same thing. Double hmmm, hard to fathom. 2 tonics close together in resistor area sound suburb but adding one more at speaker terminal muddies up sound. Head scratch! I was enjoying music sooo much I stopped there for now to experiment later. I will let you know after I finish testing. I uncovered one of the problems as to why tonic did not sound right at the PC feeding the Devialet. Some vials of crystals made by the Mad Scientist were causing the irritation, but there is still another problem I plan to uncover when I test with the other 4 left. Right now the synergy between Sonic Tonic, Stein, bybee and quantum qx4 is amazing. Either turning off the qx4 or Stein or removing bybee or Sonic Tonic causes a collapse of sound stage and other detriments to sound. Totally addictive!!