Oh I agree 100%. What I was trying to say is the SD's when pushed hard seem to my ears to become congested and shrill, actually just strained sounding is more accurate. I don't listen loud but the question asked how they sound when pushed hard so I offered my experience. My set-up is a Pair of Pi 4's in one roon and Altec Valencias in the other. Maybe you can help here; can you describe exactly what you hear in terms of the xover being audible? I would like to see if we agree on the sound of the xover. Thanks.