I have the SP-SPSB-10 and for some reason my settings inside got changed and I havent opened the box in forever and I am not sure if I have it set to 160HZ or not...not to sound stupid but when I open the battery box and it says "Off" at the top should the rocker be pushed down at the top or down at the bottom. I appreciate all the help. So stupid of me to ask the day before a show.