But why do you think powered subwoofers came with powerful amps? ;)\n\n\nThe issue is actual acoustic power. Subs are small, and that makes them inefficient. So if you look at the acoustic power versus amp power, the sub scores badly. So it takes a lot of amp power for poor acoustic power output. The lower the frequency the more the inefficiency. Sealed subs are notorious in that regard.\n\nIt is futile trying to push ported subs below F3 because the driver decouples from the box, and it wasted effort and harmful to the driver.\n\n32 ft. organ pipes are huge. At low frequencies, there is a direct relationship between output and size, for both instruments and speakers. That is another way of looking at efficiency. You will note that my speakers are huge compared to the average. So they can effortlessly reproduce to 20 Hz and shake your liver with little power.\n\nThe total effect of this system is actually astonishing compared to other more conventional approaches. If you think about it though, mine is actually the more conventional approach, as it has been used by instrument makers across the eons of time. What I am saying was, and is. intuitive to them. We just try and fight the natures laws with varying degrees of success. So claiming brownie point about the amp power of your subs, is actually a mark of a degree of futility.