Got my set of ECTs in on Monday, and have been enjoying a variety of music since. I ended up putting 3 in my DAC, one on the D/A chip, one near the fuse, and one near the output tube (12AU7). I also put one on my digital cable at the transport side, and one on the wall plug feeding my CPT power conditioner, which all the components are plugged into. The difference is obvious, across the board improvement. They are definitely not going back, and I will likely be getting more in the future.
I have been aware of the ECTs for some time, but kind of dismissed them until recently. Probably because they take a little effort to place and experiment with, and they weren’t the latest greatest tweak, getting a lot of buzz. I now wish I had tried them sooner. To my ears, in my system, they are a great value for the money. If you haven’t tried them, are open minded, and looking for a relatively inexpensive way to take your current system to another level of musical enjoyment, I highly recommend giving them a shot. You can always return them if you don’t get similar results in your system.