Some of these guys have great imaginations. I've owned a EMC-1UP for several months now and have heard my player running both ways. Initially I purchased a pair of high quality XLR to RCA adapters so that I could use the XLR outputs of the EMC-1. I could hear very little difference between that and running it straight single ended. I then had the opportunity to hear it in the system of an acquaintance, which is fully balanced. Since I wanted to compare the EMC-1 running in each mode, I also brought my preamp and using a RCA to XLR interconnect, was able to hook it up to his amps. Taking into consideration the differences in our preamps, I was not blown away by the superiority of the EMC-1 running balanced. Yes, there was more dynamic headroom and yes, it was seemingly a touch more transparent and detailed, but the difference was not staggering. Rolled off highs and mids? A lack of detail? Not in my system. If the highs were anymore extended, I'd have to grit my teeth each time I listened to cds. As for the mids, I do believe the EMC-1 is a rather neutral player in that respect. Certainly not possessing the midrange bloom of my previous cdp, the tubed BAT VK-D5. One thing I will do, once the stingy, one year warranty runs out, is intstall a better quality wire from the RCA outs as suggested by Subaruguru. Btw, in looking under the hood of the EMC-1 I found it totally unimpressive as far as build quality is concerned. Not much to it actually. After living with the magnificent build quality of the BAT D5, the EMC-1 is a bit of a disappointment. Oh well, it's sonics that count the most.