I can't find the exact topic, but on the subject of subwoofers, I use a system that has what I call just a woofer, with sattelites. The woofer is 10" with a crossover built in, the sattelites only 5" mid-high range. I have 2 sets, one in my bedroom studio, and another for live performance. I play mostly to audiences of 30 or less, but have used this system for over 200 in a gymnasium with no complaints of too loud or I can't hear you. The system is the very old Dawn speaker system using a 8 channel Carvin amp. The satelites have dispersers which send the sound out in a pattern like the Bose, and others, eliminating the need of monitors. The whole system weighs less than 50 lbs. I had to replace all the speakers due to age. Both system I found on EBay for less than $200 and the new speakers ran me about $100 for each system. For what I do, it works perfect for what I do. I also have a larger set using 12" sub with 8" satelites that I rarely use. Dawn is now building a new system using the same technology as the Bose, but are about the same price. The original Dawn's were way ahead of their time, and being built and sold in Kansas, they never caught on much. But they sure work nice.