NAD Processor Break in period


I just replaced the processor board (keyboard) in my NAD T762. Now that I have the new board in I seem to have lost bass and overall volume? Is there a break in period with the processor board? If so would this make the bass sound thin and the overall volume to be lower than normal? If there is a break-in time, how many hours is normally required?
Thanks
wheelndeal1099

Showing 2 responses by wheelndeal1099

Yes, I have tried a lot of different things. I took my brothers 753 home to do a direct comparision and the 753's bass is much better, everything set the same? I've tried adjusting everything I can and the bass still sounds thin to me. Any suggestions? Is there anything I can have looked at to see if there is a problem or is this just the way it is going to be with this reciever?