I replaced an ancient pair of 4 way Kenwood speakers with M3s. The Kenwoods had a 15 inch woofer, two 6 inch midranges, two tweeters, and a supertweeter. The M3s are nowhere near as efficient, but are infinitely better. The Kenwoods moved a lot more air but their sound reproduction was awful. Watts used to be a lot more expensive than they are now. Turn your amp up slightly and enjoy.