I have two of them, along with the original vinyls, japan SACDS as well as remasters from the 90s. In my humble opinion: these records sound perfect as it is, no need for another run of improvement cause there really isn’t anything to improve. Well, adding a 5.1 mix would definitely be an improvement howeverSorry to hijack the thread for moment but how are those SACDS? Is there any real upgrade in sonics?