Recently I have had the luck of being around some pretty good equipment. Including some very nice converters. I have heard the Lynx22 , apogee rosetta, and a pro tools rig. All sounded very nice. I couldn't really pick out much because I dont know how much of the sound I was hearing was contributed to the pre,mic,or effects. But I did know that the sound quality of the recordings were exellent. BUT I havent had the chance to hear some of the mid grade, or pro sumer converters out there. I hear alot of talk about benchmark,apogee,and lucid. But I havent heard anything about M-Audio,Echo, or Aardvark? Can someone tell me just how BIG of a differance there are between the mid priced converters compared to the Pro converters, i.e. over a $1000 to under a $1000? Is this differance just apparent to "golden ears" how hard does the normal music listener have to listen in order to hear the differance. And if its a small differance can it be "greatly improved" by mastering?