Ethan, as Randy indicated, you shouldn't overestimate the need for power, especially with speakers such as the M80s which are slightly above average in sensitivity. Keep in mind that these speakers use about 1 watt to play at a comfortably loud average level, while split-second peaks use much more, depending on factors such as room size, listener distance, average listening level, dynamic range of program material, etc. Besides the units that you've listed, also consider the Onkyos, such as the 604(around $360)or even the 504 refurb, which
tested extremely well and which is available for about $160 from Shop Onkyo.
