Well, I can't speak for the 756, but I bought a 746 last year that sounded awful. I sent it back to Icom, who said it met factory specs. I then sold the thing and bought another 746PRO which sounds beautiful and may be the best sounding rig I've ever had. I have absolutely no complaints. It does happen and apparently each rig has its own personality. I would say go for it. 73 es HNY Tom N4TJ