That mini horn tweeter packs a lot of energy. That is a good thing as long as you know how to match the Triangles with appropriate equipment. I drive my Cellos with a BAT VK-600SE power amp. The BATs are fine so if you detect any harshness or overdrive it’s the source, the cables or something else. I find both Magellan and Signature series to be tame as opposed to the older series. The Magellan Cello is more refined in comparison to the Signature Delta speakers. More resolution, better dynamics, superior staging and separation. I find Cellos to shine with blues, jazz as well as opera and classical music.