Well for one, a speaker that beats the MM3 is the Polymer Logic from Polymer Audio Research. Unlike MM3's ceramic midrange drivers, the Polymer uses a diamond midrange with a crossover that uses the world's best parts.
I am convinced that there is no better material to make a speaker cone than diamond. When talking about speakers under 100K, the Polymer Logic probably beats any speaker under $250K. I auditioned them at the Polymer listening room in miami and I am absolutely mesmerized by the sound. I heard the MM3s at a show and for sure the hype around them is true, they are unbelievable. But they still can't hold a candle to the Polymer Logic which just takes sound quality to another level.
I am convinced that there is no better material to make a speaker cone than diamond. When talking about speakers under 100K, the Polymer Logic probably beats any speaker under $250K. I auditioned them at the Polymer listening room in miami and I am absolutely mesmerized by the sound. I heard the MM3s at a show and for sure the hype around them is true, they are unbelievable. But they still can't hold a candle to the Polymer Logic which just takes sound quality to another level.