You really just need big subs. The air volume of a car is very small and they use 12” subs or more so the ratio is crazy compared to a room.
There are a number of mechanical bass shaper devices you hook up to an amp and you could bolt them to your chairs. Somewhat common in the home theater world but would drive me crazy for music.
I run two JL audio E112s and don’t get anywhere near the car type of bass for music. If it turned them all the way up they would tap out before it got there.
Maybe something like the SVS PB16-ultra. They move a lot of air, sound ok. They sound best with all the ports open. The one port closed extended mode causes some chuffing.
https://youtu.be/aFcGtng-9gU
There are a number of mechanical bass shaper devices you hook up to an amp and you could bolt them to your chairs. Somewhat common in the home theater world but would drive me crazy for music.
I run two JL audio E112s and don’t get anywhere near the car type of bass for music. If it turned them all the way up they would tap out before it got there.
Maybe something like the SVS PB16-ultra. They move a lot of air, sound ok. They sound best with all the ports open. The one port closed extended mode causes some chuffing.
https://youtu.be/aFcGtng-9gU