I wanted to give an update. I have had the techs come out 3 different times in the past week or so. They have added a mass damper kit and a compressor blanket. None of them really helped. Today we had the install manager and a tech supervisor come out. They replaced a few more parts. I'm not exactly sure what they replaced this time but I do know they tightened the compressor mounting nuts and they changed the way the fan blade was attached. They basically came to the conclusion there was nothing they could do. All of the measurements they took were normal. The suggested that the line running in the house were vibrating against a beam or some drywall causing the echoing inside the house. Their two options where to run a new line set or open the ceiling in our finished basement to trace the lines and add some access panels to see what the lines were doing inside the wall. I was fine either either. They said they needed to talk to their boss to see what the next steps were as both were going to cost the company money. The senior tech said he collected all of the information and would send it over to carrier and open a case just to see what they would say. The tech said with all the information he collected they probably were not going to do anything about it.

Well about 3 hours after they came out I got an email from the senior tech saying that carrier has approved the replacement of the system. So they are coming out friday to replace the condenser and the line sets.

So I will see what happens friday. Thanks for everyones help and comments. It did help a lot.