I have the Yam AX1 which is 6.1 matrix and really want to use 2 speakers instead of one for the centre rear. Problem is the AX1 has only one speaker connection for the centre rear. I've read a review in HCC where they actually did this with KEFs TDM bipoles. So, how do you do this ? Do you daisy chain them ? and what effect will this have to the volume level ? Would this be a good move and worth doing for the improvements or would sound quality go down ? I wish to use a 6ohm or maybe 8ohm speakers.