I am going back to separates. This unit is perfect. It is less than 3 weeks old but outside the return policy of Onecall. This unit is a July 2002 build date and has been used only as a preamp as I have external amplification. It is probably not even broken in yet. I did hook my center channel up to it to see if it had the buzz and it did only with my ear pressed up against it so it is not an issue with me at all. The unit is fantastic and exceeds my old Lexicon DC-1 in almost all areas but my ear is leading me back to more 2-channel. I have all original receipts and boxes. I will include shipping at my price except to the western US. I will have to add an additional $15 for out there. Please email me with any questions directly as I do not check the forum as often as I should. $1100 OBO.