skwoodwiva said: ↑ But the one type of silver on one channel vs pure on the other should not have caused harshness to be one one side of the room... amirm's response: Unfortunately you can be convinced that is the case even if the sound has not changed. Next time you perform this type of test have a loved one switch the cables, or not every day. Have them keep a log and you do the same as to whether you think there is a silver cable or not. At the end of the seven days, see what percentage you got right. In other words, make the test blind so that your perception of what is what does not impact the test outcome. To motivate your loved one and you to do the test, I will offer you $50 Amazon gift card to perform the test. Doesn't matter what the outcome is. You will get the $50. Just post the two logs when you are done and I will send you the gift card. Deal? Founder, Audio Science Review Basic plan: Great idea, but I have an easier one. I was going to make a nice cable for my Sony cans. So I make 3. 1)Kimber, OFC, TFE jacket, 19 ga 2)plated silver on 1 channel & Kimber the other. 3) the Opposite-redundent not used. I could ID them by marks on plug shaft. The cables should be ready in a day or two. The test equipment is ready https://www.head-fi.org/posts/14140532/ Does anyone have advice on a better way to Eq my phones than just playing a test record? Mine is not very good anyway. Would anybody post a many band test record? Ahh, a resource, an Audiophile of a high stature! https://www.head-fi.org/posts/14142737/ I ask all commers to try his online blind test, not the AB testing. You cannot AB well unless you love the source music. The db, pitch, level discernment one. .5 db, 10c, 12k (sad 61 now, oh well), 2 ms & 65 db dynamic range. Report here no need for a zillion runs I will believe you. " @edgeworth Head-Fier Joined: Jan 18, 2014 Posts: 75 Likes: 18 Can someone point me to any recent studies that have followed up very old AT&T work on training people to hear differences? I vaguely remember an old AT&T or Bell Labs study showing that people who could not identify a low frequency tone mixed in with noise were able to reliable identify the sound after it had been shown to them in non-blind conditions first? Also I wonder if audio engineers have databases that allow meta-studies of their work? I'm thinking that in this age of big data that the potential for discovering subtle but persistent effects is there. I'm minded of this when looking at the new biology studies of genes and intelligence. Many small scale studies could not find effects that were significant but when combined with other studies people have managed to publish studies (usually with enormous sample sizes on the order 500k or 1M participants) showing clear links between certain genes and a) educational attainment and b) IQ in serious bio journals. I rememberonce looking at a large cable test that seemed to show negative results but when I looked through the data it was clear that a subset of listeners could -- at statistically significant levels -- tell which cable was which. There was no followup nor paper on this and the people doing the test didn't respond to queries from me. But I haven't seen many studies that are large enough and recombinable enough to allow one to use the most sophisticated stats to ferret out subset effects. I am not an audio engineer though I work with large scale statistical data. So I'd appreciate it if an expert could give me some references. Thanks. " Ehh, Ni!