I have the same issue with the M3. It seems NAD may have a quality control issues based on purchases of their products I have made in these later years.
Also, the volume button on my M3 remote became very difficult to engage without continuous pressure on it. It wasn't covered under warranty and was about $100 for another remote.
My M3 is just over two years old and still under warranty but my dealer is about 100 miles away. I will return the M3 for repair in about a week while I am on business in that area.
I have been with NAD about 30 years. Although their products sound and perform great I am moving on to other options in the future.
Also, the volume button on my M3 remote became very difficult to engage without continuous pressure on it. It wasn't covered under warranty and was about $100 for another remote.
My M3 is just over two years old and still under warranty but my dealer is about 100 miles away. I will return the M3 for repair in about a week while I am on business in that area.
I have been with NAD about 30 years. Although their products sound and perform great I am moving on to other options in the future.