Does it matter what power amp i get?


Hi I am new to home recording. I have a pair of Alesis M1 Passive speakers and need to get an amplifier for them. I am wondering if (aside from the wattage) the type of the amplifier matters at all? I was looking at an alesis ra 150, its 200 dollars, but a friend told me any old amplifier will work, even a 100Watt one from radioshack (which I couldn't find anyway). But are there any recommendations?
driley2b07
Of course, practically any amp "will work" and make sound come out.

It is a matter of how much sound quality you want.

There are amps which could cost from $50 to $50,000 and what you are probably looking for is somewhere in the middle. Pick a budget, and look for some good reviews and online comments about amps in the price range, and hopefully using the same speakers as you have(or similar).

Not all amps are created equal, and getting a really good one that matches your speakers well, in your budget, will take a little time and effort to determine.
depends it you want decent sound or not...what is your budget? What are the ratings of these speakers (ohms, resistance)?
Oh Ok, I thought the power amp simply powered the speakers, How can it affect sound quality?