A very dear friend and co-engineer of mine in Austin, got a pair of these some time ago and kept bugging me to get a pair for my room. The headphones in question were the Product: Grado Labs Alessandro Music Series These cans are magical. Clarity, frequency roundness, air.... All the parts that were missing come alive again. I have used SONY MDR-80's for years in the studio (control room and studio) and loved them for the frequency response. These blow them away. check them out.