@erik_squires
Subwoofers... such a deep topic! 😆 And as many have stated in varying ways, the only real "right" answer is the answer that sounds good to you.
That’s news to me, I thought the THX standard was 24?
Yes, absolutely. But I am assuming there are a large number of listeners who are using non-THX certified subs and/or receivers. Subs for music seem to have some variance here, but I've seen reference to 18db/octave being most common for that application. Tests of REL subs have shown those to have a 12db/octave slope. Some (such as Perlisten) are variable.
However, I do think that many speakers, sealed or ported, have a bass hump. The ability to raise or lower the Q isn’t limited to ported speakers.
Yes, the crossover designer can raise or lower the Q of the speaker wether ported or sealed, but how would an end user go about raising/lowering Q of a sealed speaker?
The solution I implemented in my room... I built bookshelf speakers with passive radiators using Purifi drivers (ultra-low distortion). The passive radiator boxes give me more low end extension without added room boom. I supplement those with 4 sealed 10" subs crossed over very low and running just enough volume to add some "roundness" to the low end. Sounds good to my ears!
Happy Holidays!
