In an apartment, you want speakers that sound lively and full at lower volume levels. These types of speakers a re most likely to be high efficiency models that also don't require much power. Even if you are already committed to some kind of low efficiency speaker, it makes sense to focus on amplifiers that deliver good sound at modest output levels. Really big amps tend to sound a little bit lifeless when they are called upon to only deliver very low output. I would be looking at quality, not quantity in your circumstances.
Since you are probably never going to get close to drawing 3,000 watts and you should never expect to play the amp at the limits of its capability, the bigger concern is how much the amp draws on turn on. When the amp is first turned on, it can draw quite a bit while it is charging the capacitors in the power supply. That short term draw may trip a breaker, particularly if there is other stuff on the line that are already drawing power. Another practical consideration: 350 at idle is a LOT of power which is not only wasteful, it will mean a lot of heat output; is your air conditioning up to snuff in the summer?
