I have two friends who will be ordering a pack of the E Cards for their headphone systems. Their amps and Dacs are very small, way too small for regular sized E Mats.
I live in an area that’s in a canyon, so the cell phone reception isn’t always good. In fact, sometimes it really sucks. So ... it will be a small E Card inside of my cell phone case for sure ... and then two cards each in my speaker crossover compartments that I’ve already pasted with Total Contact with very good results.
More genius from Tim Mrock. :-)
Frank