This amp doesn't have a ssb option that i know of. Unless it's a switch inside. I hooked it up and never looked inside bc i knew it wasn't any thing special. At, the time i didn't know Jack about radios, just wanted to be heard at the port. I have it with a chrome cobra that I've literally done all the mods including ekl and variable, feedback loop, tantalum cap changes echo... all myself. For what it is, i have it sounding damn good. Your telling the truth, it is a piece.. lol it's a250 deluxe and on my shitty meter weakly pegs out on 100 watt scale. But when i turn the variable dead key down it swings like a mofo. I wish i had the dough to get a good set of meters. I cc think my out of the box lx w rfx75 and other mods sound almost as good, but i wanna put that radio in my house, as a driver in the future