Man, don't give up your 4311's. Many feel those were the best loudspeakers ever made. There is no better way to get bang for your buck than to use JBL studio monitors. Comparatively inexpensive, but almost all the major (and minor) recording studios used those speakers when recording the albums you listen to. What better speaker to have than ones which will give you the same sounds the artist was mixing on?!! I have a pair of 4311's as well as classic 4412's (with freq. adjustments). The 4412's (which are still sold w/o frequency adjustments) are the only thing I'd recommend, and it's a close call as to whether they sound better than the 4311's. Even though the 4412's have a titanium tweeter, the cone tweeter on the 4311's has an amazing high frequency sound. People are clammering to buy 4311's on eBay so don't think for a minute that you're missing out. My 4311's and 4412's whip the heck out of $10,000.00 Vandersteen speakers my friend has (in my opinion). Moreover, I have a high-end, modern system with various Sunfire signature components, and my JBL's sound just find with them.