I received my new Ultra SL preamp last week, so I thought I'd post a few first impressions. First of all, the fit and finish is great! The new faceplate and chassis width looks very nice and subdued. All knobs and switches have a smooth feel and positive action.
I have done most of my listening thus far with headphones (as I often do) for various reasons. I have been used to using a very highly regarded stand-alone "high end" headphone amp that I have been supremely satisfied with. I thought that the Ultra SL headphone section would be my "backup" in case something happened to my stand-alone amp. Well, that is not at all the case! The Ultra SL headphone section is at least as good, if not better than, my dedicated headphone amp in virtually every aspect! I can hear details that were previously not there, but the musicality is not lost at all. Bass is deep and quick, while highs are extended, airy, and most of all... realistic. My beloved headphone amp is now up for sale. By the way, my headphones consist of Beyerdynamic DT-880 and Sennheiser HD-650, both of which are high impedance models with fairly low sensitivity. The Ultra SL volume knob is usually in the 9:00-11:00 range for my range of listening levels.
Sorry for rambling, but I thought that those of you who listen to headphones might be interested... Jim