I agree with using larger speakers for the fronts if budget permits. Just make sure the drivers match the surround speakers you select.
True, dipoles emulate a diffused soundfield, but home theater is out running real movie theaters in the multi channel department. Dolby digital and dts are already at 7.1 formats and growing. These surround arrays are designed to image like the front channels, and the best results will be achieved by using identical speakers all the way around. As your system grows, simply add more monitors i.e. rear center speaker. Only use a dipole if your space is confined or installation will not permit the use of monitors or larger speakers. Make sure you mount the speakers so the high frequency drivers are about 2'-3' above the listeners head for proper results.
True, dipoles emulate a diffused soundfield, but home theater is out running real movie theaters in the multi channel department. Dolby digital and dts are already at 7.1 formats and growing. These surround arrays are designed to image like the front channels, and the best results will be achieved by using identical speakers all the way around. As your system grows, simply add more monitors i.e. rear center speaker. Only use a dipole if your space is confined or installation will not permit the use of monitors or larger speakers. Make sure you mount the speakers so the high frequency drivers are about 2'-3' above the listeners head for proper results.