Cradledorf, First I would like to say that I haven't seen anybody have as much fun as you with your Altecs since I joined this board. Your not afraid of trying anything. It's inspirational. Second, a even cheaper Selenium to try is the ST-200. They're only twenty bucks a piece, and you might even have to turn them down running with 604's. I have three ST-350's for my three front channels and it's nice to hear highs again. But, if I could do it again I'd get the 200's. Less money. Keep experimenting !