hmm now if I do mount the 4 JBL's I'll be putting one in each corner and I want them all facing center nicely, but they will have to be lying sideways which means the center of the speaker is going to be quite a distance from the actual corner of the wall, so I dont know if those will reach..

Could anyone tell me what the difference between the 4 JBL N26II's i have now and two of the CMT-340m's . If only get two speakers it will be alot easier to mount as they will be on a flat wall not a corner.