Small sealed under couch subwoofer

[zerokelvin99]

Magnet out with angled baffle as mentioned previously may work well if you plan 8" or even 10" drivers.

Would also add an element of cone protection

 

[scottjoplin]

Good thinking Batman 😀

 

[Randell Jon Bassinga]

Have a look at the JL Audio shallow mount range. Using a sealed box they can be hard to beat for sq

 

[djn]

Here is a project from PE that I always wanted to try but never had the need for it.

The Boogieman | Parts Express Project Gallery