I THINK THE ONIX IS ONE GREAT MACHINE. I HAVE DI 2D ON FRONT AND 998 AND 859 ON BACK,I LOVE THEM,FINALLY GOT IT WHERE I CAN SEE 998SI AND 859 DI ON CONSOLE AT SAME TIME WITHOUT ANY CROSS TALK,THIS WAY I USE FULL SCREEN SI AND SPLIT DI AND GPS OR SONAR ON 859,A GREAT HELP,THIS WAY I GET GOOD DI PIC,LOVE TO SEE YOUR ONIX ON WATER SOMETIMES,IT LOOKS LIKE U GOT IT TUNE IN