I was given this as a birthday gift from my son & daughter to replace my Bose equaliser on my 901 speakers. Just after I was given it we got a contract on our house so never got to try it out till I registered it on 11/01 this year I cannot fault the product but am a bit dissapointed that there will be no updates after May this year. The sound through the Bose speakers with this product is exceptional. My overall rating is because the product will have no further updates