18'' subs that don't need a huge box

[Jeffdachef 5,000+ posts]

I have 15's now. The 15's get loud and most people say it's too much but I've grown used to them and want to try 18's. The 15's are in 9 cubed net, I may be able to squeeze 10 net.

Ten cubic feet is perfect for ten 10 inch subs, five 12s, maybe 3 15s and a pair of dss ethos 18s. Actually nvm, quentin jarell said they need 5 cubes net but require 16 to 26 sq inches of port area per cubic feet which is gigantic. Port area takes up space, what you think is enough cubic feet will be completely off in real world applications.

 

[gckless 5,000+ posts]

Do a pair of 18's sealed. I think you'll be surprised. Everyone writes it off, but I lost almost no SPL coming from a small ported box.

Also, Dayton HO 18's will work in 3 cubes. Could fit 3 18's sealed if you have the baffle space.