I have older and newer EV's, open and closed back cabinets, and a Mark lV combo. Two of the closed back cabinets are made by Scott Johnson at Boogafunk and I have a Boogie theile closed back, they sound different. I would say the Boogafunks sound smoother, less harsh when compared side by side. The EV in the Mark lV is a new "classic" 200 watt, it is very tight and articulate, probably because it is new. The mark lV came with a C90 that I took out because I found the mid-range honk unbearable. The EV was so much better I sold the C90. The other EV is in a open back Mark llB cabinet and that has a smoother sound than the "classic" but when compared to Boogafunk or theile seems a bit harsher/brighter. I also have various other speaker cabinets, a Marshall 1960A w/ G65 celestions that I bought new and abused it for years and it still sounds phenomenal, Marshall 1960B w/ G75's, Genz-Benz 4X12's with Eminence speakers and they much smoother in sound compared to the EV's. In my opinion, if I could only have one speaker I'd go with one of the Boogafunks with my Mark lll black dot head. I think any EV12L is better than most other speakers when using just one, although there are ones I haven't tried, yet.