does a subwoofer kill stereo sound?

I've tried at least 4 different amps ( 3 were bridged Stereo amps ) on my passive 18" sub , the better and pricier amps were very important and not just for impact , For 2 channel music .
I also tried some different crossovers , including one with room correction , hate to say it , but the more I spent the better it got .
As good as it is , We seem to listen to most music without it , but its a must for watching movies .

Put the sub between the two speakers. Problems solved.

"Put the sub between the two speakers. Problems solved."

Umm, no. Problem is worse. A lot worse.

not in my home. but then again, i've got two wired as stereo so no threat here.

I use a Visonik of Germany, 8" sub unit in between my John Blue JB4's which are on 5" high stands.(These are full range units which do a good job with bass, for their size) My music room is very small: 10 x 15' long. The sub is turned down very low. The stereo imaging does not seem to be affected at all. When I turn it off, you definately hear that it's missing. If the idea of a stereo is to get the best sound you possibly can get in your environment, and a sub is a gain to your musical experience, Go For It! After all, how boring would it be if we all agreed.