For more info: http://www.pssl.com/Search?q=JBL+3+Series+MkII
Since their release, word has spread on the quality and value found in the original JBL 3 Series, resulting in wide adoption from hobbyists to high-end professionals working in music, film, post, and broadcast production worldwide. With such an obvious hit, you might ask, "Why update now?" On every JBL project, there’s always a handful of features or improvements that the engineering team can’t squeeze in before going to production, and 3 Series was no different. When the opportunity presented itself, we decided to make those final improvements to the transducers, add a frequently-requested feature, and apply the latest manufacturing learnings. The result—new editions of these popular studio monitors that retain the best qualities of the originals, but now look better, sound better, and provide transparent sound in even more production environments.