Aw Cheeze! Another thread veers off center.
I'll just put in my $.02 and move on.
Whether one "believes" in speaker break in or not, comparing it to religion is simply farcical. It's supposedly based on scientific fact and should be either proven or dis-proven on that playing field. Religion is purely faith based and can neither be proven or disproven. Never the twain's shall meet.
OP, there are a plethora of speakers out there. They all sound different. That's because every-one's tastes differ. There is really no right or wrong in what one prefers in speakers. Some you like, some you don't.
There's no shame in not sharing the same tastes that other people share. Not everyone likes Infinity, or any speaker for that matter. If we all liked one speaker there would be no need for all these different brands, would there?
If, even after trying the suggestions offered by the kind denizens of this site, send 'em back. Remember, you purchased these bases purely on what you read of others people's opinions.
Will you choose your significant other based solely on what others think about her and try to learn to live with her even if you really don't like her?
But, make your decision while the window to return them is still open. Ain't no amount of break-in is gonna make a silk purse out of a sow's ear.
P.S. I do suggest you try a different source, say a CD player or the analog audio output of a DVD player.