Not wanting to hijack some other thread, I decided to start a new one. I now have the transducers for my high efficiency "desktop" bi-amped speaker project. The midrange/treble will be handled by a Fostex FE108-SOL which I will try open baffle and with rear sealed chamber. I chose this driver based on its efficiency and frequency response extension and smoothness for a full-range driver. For woofer I will use the SB Acoustics Satori WO24P-8 and operate them definitely open baffle, my favorite for bass. I chose this woofer based on its low Fs, big xmax, shorting rings for distortion reduction, and excellent venting of the spider and center pole. Next I will start on the baffles and frames.