Bk monolith + woofer up grrade options

Hello guys.

I recently got back into audio. I'd not owned a system since 1995.. so I bought some big subs. An amp off my mate. And some speakers from richer sounds..

Room 4m x 8m it's a knock through. It's also got a kitchen coming of that room 3m x 6m. So quite big.

I have 1 bk monolith and 1 bk monolith +
I was thinking of upgrading the woofer on the 300w monolith and putting the daton audio 12 in

But now I'm thinking I just need more subs. What do think. I'm getting good solid bass in low 30s mid 20s rolling off fast. But I want the sofa shaking at 20hz if possible and not loud either as I can't listen to loud for long. I've attached some images.. I've got the subs side beside at the min.. best for my 1 listening spot for a low as I can get.. is 20hz possible.. I have the sub frequency set at 40hz because that's how I seem to like it.. no thumping or banging.. I have everything boosted on audessy but I don't get near the 20s. The woofer dances at 20hz but zero pressure in room.. i might add tho that I don't abuse them so I doubt they get to Xmas.. I have a dsp but I can't work it out yet. Been messing for months now obsessed .. I could do with some help if possible.
 

Attachments

  • 20220122_201549.jpg
    20220122_201549.jpg
    406.8 KB · Views: 203
  • 20220122_201649.jpg
    20220122_201649.jpg
    328.7 KB · Views: 180
  • 20220122_201708.jpg
    20220122_201708.jpg
    285.9 KB · Views: 154
  • 20220122_201605.jpg
    20220122_201605.jpg
    273.7 KB · Views: 160
Last edited: