I was looking at getting a McIntosh MC252 but realized it does not have a fully balanced design. To get that feature, I would have to upgrade to the MC402. The extra power isn't needed, but I was curious if I would realize an improvement from the fully balanced design of the 402 that would justify the increase in cost. I am currently connecting with the RCA cables. So in addition to the amp price increase, I would also have to get a set of XLR cables. This would be for the 2-channel audio portion of my system.