Rb,
I use my 100S3s in my two channel a/v system for A/V.
Speaker position is key to get a clean center channel image with 2 OHM mains in lieu of an actual center channel speaker. The speakers may need to be closer together and/or further out from the wall. Other items/obstacles nearby may have an effect on the reflected sound including a the tv in between. It all depends. More description/pictures of your setup would make it easier to help troubleshoot.
I use my 100S3s in my two channel a/v system for A/V.
Speaker position is key to get a clean center channel image with 2 OHM mains in lieu of an actual center channel speaker. The speakers may need to be closer together and/or further out from the wall. Other items/obstacles nearby may have an effect on the reflected sound including a the tv in between. It all depends. More description/pictures of your setup would make it easier to help troubleshoot.