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

avanti1960 Details Discussions Posts This discussion Message User 1,411 posts 12-26-2021 at 02:39pm Copy Comment URL Report Comment Edit Delete Merry Christmas to you ! I have two REL T9i and love the sound. They are subwoofers with sound that contradicts their specifications. Mine play down to 20Hz in room at the listening position and have more than enough power, punch and impact in my med-large room. Of the several other subwoofers I have tried the RELs are the only ones to not color and obscure the midrange and they blend perfectly well. They are so easy to adjust so that they blend with your system- think days instead of months. No other subs for me. Peace.