I would expect that the manual for your CD player tells what voltage input it's expecting on the aux input lines. The empeg's manual lists what it's putting out (I forget what it is right now). If they're the same, then you should be good to go. If the empeg's lower, you might need to invest in some sort of mini-amplifier, maybe like the PAC Turbo-1? If the empeg's higher, I don't know what you should do other than lock your volume at a fairly low level.