It just so happens that I have a box of those Eichmann Toppers and have never tried them on my speakers before. So I figured what the heck , grabbed my son and we went down to the mancave for a trial. Well I don't understand how or why, but putting three of these things across the top of the speakers made an instantly noticeable difference in the sound. Boggles my mind - the speakers weigh 175 lbs each but putting these three two ounce devices in top of then can change the sound.
Definitely smoothed out the top end, but I'm not sure if it did so at the cost of detail. Need more listening with different musical selections before I render and opinion as to whether the change is for the good or the bad (and I also want to wait until my tube amp gets back from the shop and hear them with that driving the speakers), but the fact remains that the change was there.