Subwoofer on the small

[jj]

I am wanting to build 1 or 2 subs using KEF B200 SP1039 drivers.
I used them in a project like the large coffin sub. I noew need something much smaller. I was again thinking about a tL design or isobaric or a 4th order alignment. I would like something around 30 to 35 Hz Fs. Anybody got any ideas on how I should go?

 

[mikee12345]

start with the simplest

Tlines are slow to model
A ported box will give you a 'similar' end result

Find the t/s specs of the woofer youl use,and model away with winisd pro 🙂