There is a lot of difference in the Pfaff's made in Germany than when they sold out...those older Pfaff's were and still are fabulous. I have only the german made ones and although many people are happy with the newer ones there have been numerous problems that had to be sorted out with each model. That said, I think and could be wrong but there are a lot of machines (various makers) that are just plain loud when sewing. I have heard that some people put some type of matt under their machine to help with the noise and vibration. I would definately call the dealer you exchanged your Pfaff with and ask if this is normal for this particular machine or if you can take it in and let them hear for themselves what you are talking about you will know for sure if it is normal or if there is a problem.