Ian, 93 dB doesn't mean that they're easy to drive since they have large pair of woofers 15" or so that will definitely benefit from power vs. small amps. At the same time I was not pleased with sound of APs and truly saying with any side-firing-woofer speakers except Coincident Eclipce that is due to its high impeadance is the best choice for low-powered amps. BTW Coincident is also an excellent choice for the buck and it's realy a state of the art speaker whichever you pick from the their line.
