I'm sorry, but i have to remind that iPhono is Made in China and MANY users have a problems with brand new units. Some users replaced 2-3 units under warranty and still have got serious problems. This phono stage must be avoided, seriously. I have tried one in my system, there is NO optional loading for MM cartridges, only for MC. Surely not all of them are defective, but i've posted a links to another forum and even here on audiogon we have reports from some users about defective iPhono 2. In my opinion this phono stage is a crappy one. Serious phono stages are hand build by designers, but the iphono simply made in China.