2- DZR12 - (SPL) 139 , . , , DZR12 , 2- 2- - 12- - . SPL 139 39 - 20 2000- D 96- - FIR-X, - DSP- , , , . . - D-Contour , (SPCVR-DZR12), U- (UB-DZR)