Hi Mark, Hope you're doing well. The item that prompted my posting was one in which the performance of DX/VST plugins under Windows was compared unfavorably with JAMin under Linux. I didn't get the impression that the poster was discussing mastering tools, but I suppose that's possible. Some users who may look at JAMin and think it's supposed to be a plugin rather than appreciate that it was specifically designed for something else, despite the fact that it's displaying a representation of a real-time 1024-point FFT, or so it would seem. ---------------------- Designing a mastering tool as a plugin may have a slight advantage for ease-of-use, but it seems to me a relatively larger disadvantage in that the interface would have to follow plugin restrictions, which may be rather limiting. I like the JAMin developers' design here. Philicordia mentioned using JAMin on submixes. I think that's great; but I'm sure he knows exactly what the tool actually is. I also appreciate his mentioning that because that's often where I have problems. That 3-D reverb stuff I'm working on acts almost like an expander on certain material. Under certain conditions, it also acts as a low-pass filter. Best regards, Dave.