Subwoofer for music, how low?

I am looking for a pair of subs for music. I plan on having four if the two can blend with my speakers.

I have the Tekton Double Impact and tomorrow I will get a set of Buchardt S400Mk2.

I have been looking at the REL T/9x but the only go down to 27Hz at -3db. Should a sub not go down to 20Hz?

I live in Denmark so I have fewer options. I really like the swarm sub array but to costly to get it to Denmark.

I am looking for recommendations. It could be DIY or a specific sub.

I am open for suggestions

Merry Christmas

martin-andersen12-26-2021 1:35pm

tony1954 Details Discussions Posts This discussion Message User 936 posts 01-04-2022 at 12:21am Copy Comment URL Report Comment Edit Delete Contrary to what has been said to the OP on the topic of implementing a distributed bass array (Swarm), the positioning of four subs should not be symmetrical, but asymmetrical. Symmetrical positioning of subs only increases the chance that room modes will be accentuated instead of reduced. Asymmetrical positioning increases the number of first reflection points, which should result in a smoother overall low frequency dispersion.