I bought this cab from Tom Bowlus a number of years ago. Here is his explanation for the name. "Epifani T-110UL - As mentioned, I believe this to be the same cab currently offered as the "UL110" (the "T-110UL" nomenclature was used back before the "NYC" label started to be used for the ceramic driver based cabs)." I don't know if that makes this a Series 1 or not. It hasn't been gigged or pushed hard since I've owned it. I still love the way this cab sounds, but it's time for a change. Looking to stick with a compact 110, 112 or 115. 4 ohms is preferred. A Euphonic Audio Wizzy 12M is at the top of my list, but I'm open to entertaining other trades as well. The cab is in great condition and comes with a padded cover. I can post pics if anyone wants to see it. Con US and Canada only.