In the threat "I would like to introduce myself." you can see my system.
Everything sounds very fine, but naturally the rear loaded horns like 4530 have a delimitation in the range starting with 50 Hz.
So my idea is to create a subbase (vented box) which goes down to 20Hz (16Hz/-3dB).
This stage should insert itself harmoniously into the existing sound.
That`s not so easy, because the 4530 have an enourmous sound pressure.
The best way should be 4 18" Shearer Horns, but this dimension are too large for my small home (and it`s also not possible to go down to earthquake-frequenzies)....
The highpass cutoff should be 50Hz, aktive separated.
Has anybody build a system, which goes down to these deep frequenzies?
Is it possible with 4 2245H?
(my software said no....)