Thanks for posting this. I hadn't seen this site before!There is a subwoofer. It is under the rear passenger side seat. If you log on th meridian's website they have some details.
Meridian | Rivian
The Rivian Elevation sound system, engineered by Meridian features numerous strategically placed speakers throughout the cabin. In addition, a number of innovative proprietary technologies have been exclusively tailored for Rivian.www.meridian-audio.com
PK
Noticed it under the rear seat in the R1T at the Venice location.I’m a bit of an audiophile and I can’t help but notice theirs no mention of a subwoofer being included in the premium audio package. Has anyone seen or heard of subwoofer packages.