Small frame subwoofer

Take a look at the SVS SB1000 Pro.  It’s a sealed basically 13” cube that’ll still get you down to an honest 20Hz (-3dB) and includes an integration software app so you can dial in the sub with your phone.  The only problem is it’s only $599 so might not be expensive enough for you…heh heh.

https://www.svsound.com/products/sb-1000-pro-subwoofer

Best of luck. 

The solution might seem counter intuitive. Instead of one, add two. They can be as small as they get. Just make sure they are wireless. They can be very innocuous and unassuming. Two will be easier to place than one and can be totally out of sight. A lot of companies make them including KEF. The queen herself won’t be able to locate them. 

poke33

Seek out a Sunfire subwoofer. These speakers pack quite a punch while retaining a small footprint.

Happy Listening!

The thing most audiophiles do is overestimate how much subwoofer they need, and underestimate how much effort it could take to get it dialed in properly, especially if you are limited in your choice of location.

You might want to try the room mode simulator below to see how good/bad your placement options might be.  

Check out the KEF KC62 for small and the SVS SB2000 Pro for a bit bigger.  I’m using one of the SB2000 Pro’s in the back of my 16’x20’ room and it does everything I want.

All the best.

I forgot to add the SVS 3000 micro, might be something for you to look at as well.

poke33, there’s a considerable difference between REL sub bass systems and the actual subwoofers being suggested above which have far more adjustability.

Is the Canton Vento 12’s 21"H x 17"D x 20"D your significant others size limit?

Thanks folks!... Appreciate all the inputs... M-Db... I still have to socialize the size but I would say yes...