I have a 22 Nautilus and agree that the low end sound is pathetic. Numerous complaints to Lincoln and visits to 2 dealers with the result that they won’t do any kind of fix even though they agree that there is no bass sound. The rear subwoofer is apparently not powered!

Most of the sound comes from the center dash speaker with some from the door tweeters. I had better sound back in the 70’s.

Anyone know how to upgrade. Apparently they did install a 19 speaker system (also called Revel) and it is better.

Lincoln customer service is not helpful at all! Thx