I have an old set of Pioneer HPM 900s in great shape that I use in my exercise area, as well as some Klipsch KG 5.5s that have been my main speakers for the stereo. I'm currently putting together a hybrid open baffle system that will be the new main speakers. I like some things about each of my old speaker systems, but they're big and in the way, and the wife would like smaller speakers in the exercise area. I don't think that either system is "fabulous" sounding, but definitely better than a lot thats out there today. I should sell them both, but know that I'll be almost giving them away if I do (especially the Pioneers). I just have difficulty getting rid of old, cool things, even if I really don't need them and they're in the way. I've mulled over harvesting some of the drivers from the Pioneer from a new project, or replacing the Tractrix of the Klipsch with an Econowave, but I'm not sure it makes sense cost or timewise. Any advice?