Quote Originally Posted by RUGER761 View Post
Coming from a 2020 free air to a 2021 with the new box, the 2021 sounds much better and hits a lot harder. Not sure what version of sub is in the current one.
This difference would also be noticed if you went from a sealed enclosure to a ported. The port is equivalent to extra cone area. Also, I believe the previous Revo-10FA was bridged on an HTX-6 for up to 300W rms where as the new HP is bridged on a Syn-DX6 for 600W rms potential.

Holdmybeer's boat is the example I noted earlier. Wrong woofer poorly installed. Could have kept the same woofer and built a proper sealed enclosure and have a 10X sounding setup.