I had a DX7 and sold it when I bought the DX9. After a couple of months the DX9 took a dump and hat to send it in. Scrambling to get another radio, a buddy had a DX7 for sale. I bought it right off and used it till I got the DX9 back, another new one actually. The 7 still sits on my shelf as a backup. Never had a moments trouble with it for the number of yrs when I bought it new.