Aron, an amp in the quality range of a Rowland will absolutely tear up any Adcom or similar amp driving any speaker you care to throw at it (BTW, 86dB is average sensetivity). Do not place too much emphasis on rated output wattage - it really means very little by the time you get to 100w or above for a top-quality SS amp with most speakers, unless you're trying to reproduce concert levels (even less for tubes). And believe me, you don't want to hear a mediocre amp with high rated-output numbers play your music through any halfway-decent speakers at a really loud volume anyway. You owe to yourself to just go down to your local shop and audition a comparision like what you're asking about. I promise that after such an ear-opener you will never give the question a second thought again, especially if you can actually afford the better amp and all the rest of the equivalent-quality components and cables you will need to do it justice - and if you can, I envy you!