driley, everything up the chain from the speakers affect the sound coming out. Amps, like other components, do have different characteristics from one another. Twl hit the nail on the head when he suggested you take care to match the amp to the speakers. Some amps that sound fine with one speaker will not sound so fine with another (e.g., different damping characteristics or input impedences).
Generally, manufactures match amps to their speakers, so if you are looking at the same brand of amp as are your speakers, you should be OK. Try the Alesis -- if you're happy, go for it. I imagine you should be able to get some kind of money back guarantee you can use if you are unhappy. What the heck -- try a side by side comparison with another amp (also with a good return policy) and see which rocks your boat. Good luck.
Generally, manufactures match amps to their speakers, so if you are looking at the same brand of amp as are your speakers, you should be OK. Try the Alesis -- if you're happy, go for it. I imagine you should be able to get some kind of money back guarantee you can use if you are unhappy. What the heck -- try a side by side comparison with another amp (also with a good return policy) and see which rocks your boat. Good luck.