markw said:
...take 'em back and exchange 'em. It's not like you married 'em.
If you have a little time before you would have to take them back, like 14 or 30 days, you might try running them at a decent volume for several hours. Sometimes, speakers do need to break in.
I was very upset with the Inifnity package I bought when I first put it in. I almost put them right back in the box and sent them back. They were bordering on flat-out hissy. After reading some of the other AudioHolics posts, I let them burn in for about 3 hours a day for a week. Everything loosened up and sounded much better after that.
One key note here... have them playing while you are not at home, and only check on them every so often. If you run them too much while you are listening directly to them, it might be you who is burning in and not the speakers.
If you think they sound better after a week, keep them. If not, they should go back.