I had Gene replace the original gold plated brass ends that were on my MIT Avg 1 cables with these babies and I immediately noticed an improvement over the originals never mind burn in (which improved the sound further). I highly recommend these little beauties and have since had all my rca's replaced with these.

Ed - Canada

Tried these on my existing DIY UPOCC silver in teflon/cotton IC cables, which previously used everyday brass connectors. Burned them in for a week. Makes a very worthwhile upgrade, immediately noticeable, and highly pleasing in tone and detail. Musical, very!

Rick - California USA