How to turn DBFB off without a remote?

Hi I have same problem did you manage to get a solution?

Sad, but true: without a remote it won't work. Had the same problem. Logitech Harmony 300 solved it in my case for a hcd ed1a. You can choose any sony device with a dfbf function. strangely for my modell logitech didn'nt support the bass boost function. so i searched for another version and found str-d511. with this device everything worked fine and i was able to switch the dbfb function off. you have to ad the bass boost function button manually. logitech harmony calls it bass boost, instead of sony dbfb. than ad this button to your device button list and you should be able to turn dbfb off.