Not only have I tried the JW Signature ICs, but I've used the Schroeder method of running identical IC pairs using 4 sets of connectors to a particular connection. As with all the combinations I've tried, using 2 rather than 1 set of ICs has a much bigger improvement in the ICs SQ than using one that is st least double the price by the same manufacturer. Also done with Teo GC II's, and Acoustic BBQ double ICs. It is a great way to upgrade at reasonable cost. I still use one set each of the mentioned ICs and have compared the difference with the much more expensive IC in my system that a friend brought over for comparison. In all cases, the double ICs outdid the single set by the same maker. The JW's are very good sounding ICs--BUT...the double ICs by any of the makers is a very significant difference in SQ for the better compared to the single set of ICs, with zero drawbacks other than the cost to do it.
Bob
Thanks Doug S. for the tip. Doug is a professional reviewer for Dagogo. And sorry if this is beyond your desire to improve the sound of your system.