I had the 225's and traded them shortly after I received my MS2i. The Alessandros correct the deficiencies of the 225's - the bass is more robust through the lower register without being boomy, the treble is crisp with no edge that the 225's demonstrated, and the mids are silkier. They just seem more mature, overall. The 225's were a significant improvement over the 60/80/125 group, but the MS2i are the same improvement over the 225's. The build quality is much better, too - they seem substantial, like something you will have for years and years. Overall, they are a very even presentation, seemly less colored, more "unfooled around with" in their SQ. It's as if the 225s were engineered to present their strengths well while excusing some deficiencies. Leaving well enough alone, you might be pleased with them. When you give the same critical listening experience to the MS2i, however, you realize that it does everything better than the 225's, but seemingly without trying so hard in the process, and hiding or excusing nothing. Very natural, easy going, detailed, yet fun sound. Sometimes it's breathtaking. I'm very pleased.