So are there any good DIY designs?

The plans for the WSX sub are widely available and they run really well with the standard Void V18. They sound great. Not sure if you would call it a DIY design as originally Martin Audio but its available for anyone to build due to its age.

Hog scoops, as mentioned, are pretty impressive. I dont particularly like the muddy bass of them but for sheer output they are hard to beat with many other DIY bins.

Punishers are pretty awesome for the size, a one man lift and have a real high output for a single 12" sub. 

Invaders too, are pretty good. maybe not the best but I like them

Even G-subs have a really high output and sound nice, but are better for indoor venues and not very good at outdoor or covering large crowds. Everyone slates reflex but I think thats just because they are 'boring' builds, you cant go wrong with a good reflex rig up close.

As for upper bass, the USB or the ES18 are pretty good cabs.

Tops, I have a soft spot for Xtro's but if you want ease of build and loading then the MT121 does the job great.

All have their downsides obviously as does any cab but cant really go wrong with those if they are loaded, set up and powered properly.

Edited by Requiem - 19 January 2023 at 8:06am