There were two different 4311's made; one had a hedious titanium tweeter that would take your head off. When the recording engineers in L.A. started a massive protest, JBL changed the design.xstatic said:Wow, mine are way different. i have the 4311b's and I tend to run both at about 3. It really varies on the day for me. They just seem so harsh. They make me love my Dynaudio's even more. I think I may replace the mids and the highs in my JBL's soon.