Atlantic Technology - Dipole-Bipole Surround Speakers - 1400SRZ-P-BLKA single pair of 1400 SR's can replicate the sound of the large array of surround speakers found in the best commercial movie theaters. Set for Dipole, they create a diffuse sound field that is virtually impossible to pinpoint by ear, enveloping the listening room in realistic three dimensional sound effects. Set to Bipole, they deliver a more precisely localizable sound pattern that can be very dramatic with high impact popular music. The listener