going for a complete system build and done some research was thinking of bose 191 speakers with the yamaha dsp-ax863se or rx-v765 av-reciever , a sony bdp-s370 blu ray and the hx703 lcd screen cant find a suitable base unit tho? my centre speaker would be the bose 151(have to buy a pair)the bose 191 two front in the wall and two rear in ceiling.