"I felt that the force of the music was being held back ever so slightly which led me to believe that a break-in period was necessary. I continued to listen to music, on LP, for about 2 hours per day over a 2 week period with the R203 in place. One night after listening to “So Far Away” from Dire Straits I removed the R203 and played the track again. I was amazed that small details were now missing. I couldn’t clearly hear the background vocals and the bass and Knoffler’s guitar were no longer separated by space. The snare drum crack came too far into the room. I reconnected the R203 and immediately heard the extra detail and was now aware that the music was just as dynamic and wasn’t being held back at all while sounding more coherent and together rather than an electronic reproduction. Had my ears played tricks on me or was a break-in time necessary? I am not sure, although most copper wire does need breaking in so it seems logical to me that so should the leads on this device."
I agree with your point, i.e. I believe that they DO show an improvement after their "break-in" period. I stated that a while back in the thread post shown below, but you are the first person to corroborate this observation. Thanks! Here's the response that I posted to a thread:
I have reviewed the Dakiom feedback stabilizers. They worked quite well for me with the original B&K ST 140 amp, and also helped with the Odyssey Stratos Extreme Monoblocks. At FIRST, when used with the Odyssey Extreme Monos, they seemed to truncate upper end detail ever so slightly, but still improved the overall sound, including the bass, so I kept them on. LATER, after several weeks or so, when I retested them again (with and without), they did NOT seem to truncate upper end detail, and just made the music sound sweeter, and overall better. Not sure why that happened but it was undeniable to me and my instrument-playing wife. The folks at Dakiom seem to think that "burn-in" is a psychoacoustic phenomenon but that runs contrary to my experience with their product. Also, the boxes still helped the Odyssey Monoblocks, even though those amps use "very little" negative feedback, according to Klaus Bunge, when I spoke to him on the phone."