I am wondering about what happens when one uses multiple drivers of the same type in terms of wattage, impedance and SPL. Using a home theatre reciever, assume i get 150W per channel with five channels. I wish to use two or three of the same woofer for each speaker, and that woofer just happens to be rated at 150W RMS @ 8 ohms. This reciever is rated for 8-16 ohms per channel. If I connect two or more of the woofers in parallel, I will surely destroy the reciever's amp. However, if I connect them in series, the reciever will produce much less wattage. Is it possible to design some wiring such that the load is 8 ohms (or 6 ohms I suppose, I sincerely doubt any reputable reciever manufacturer would make it so your amp blows up with a 6 ohm load.. that would be asking for trouble) without using 4 or more speakers or something with a bunch of resistors that waste power?