Mitch, a few things. Looking at your systems page ( very nice ) the Khorns would be too far apart from one another. The Lascalas would be my choice ( why I have the Lascalas as well ). Yes, I had a side business, and started damping horns ( and other areas of speakers / equipment ) 50 years ago. My ears recognized the " ringing " and resonances that was very apparent, and I used products such as mortite, clay, and then as time went on, Dynamat, and self adhesive roofing repair tapes, such as Peel and Seal and U Seal, available at Lowes and HD. Significant improvements in sq. I did not stop at horns, as I do the driver baskets of woofers, the magnet assemblies, and in the case of mid horns that are held with brackets at the rear of the horn, to the cabinets ( such as the Khorn and Lascala, as there are others ), these areas as well, as they vibrate and resonate with higher volume. I am a Klipsch Heritage fanboy, as I find the 5 original Heritage models designed by the one and only PWK himself, to be the best at their respective price points, yesterday, and still today. Many others feel the same, many others do not. I was in the audio business, in NY, for over 40 years, sold at stores, was a rep and did consulting. I owned a lot, and heard just about everything. I do not claim to have the best ears, nor be the most knowledgeable in sound system set up. Admittedly, there are many speakers that do some things very well. What I do want to say is, I discovered, a long time ago, a reproduction of musical playback, that has stood MY test of time, and has "easily " satisfied my listening desires, and pleasures, with every type of music available, compared to others. With tubes and solid state, with low power and high power, with analog and with digital, with music and movie soundtracks, it is here. Klipsch, as a company, keeps " the mans " dreams and designs going, after he is gone, and they are still selling, here and abroad. You are welcome to pm me, or keep this as an open discussion. Enjoy ! MrD.