"Isn't the point of the Anarchy tapped horn is to have deep extension and reasonable smaller size? Thats why Lil Mike suggests multiples of the Anarchy if you want more output?"
it doesn't matter what the design is, horns have limitations just like every other design.
there is no magic in tapped horns despite what some may claim, so don't get fooled.
the primary advantage of a subwoofer tapped horn is about a +6db increase in low end sensitivity and maximum spl
relative to a ported enclosure using the same driver, but the tapped horn tends to be at least twice
as large in order to realize such gains.
for a small enclosure, 2 cubic feet, like the anarchy tapped horn, sensitivity will be quite limited.
in this case it is around 87 db 1w1m across the bass. you can get that same level of sensitivty
in a larger ported enclosure using a cheap 12" bass driver like the infinity reference 1262w.
the anarchy is excursion limited to the 12.5 mm xmax of the driver at 38hz in the horn.
the spl limit at that level is 106db.
the infinity reference is not excursion limted with a 28hz tuning up to 500 watts
where it will be producing 115db at the same 38hz.
so in this case, i would say that the exodus anarchy horn gets slaughtered by the ported infinity reference
because the infinity can take more power before running out of gas.
so why are horns popular. well, back when the horn was designed, i'm not sure there were quite as many
cheap driver options, so getting the most out of each driver was an admirable design goal.
second, the form factor of this particular horn fits quite nicely into many rooms. no volume is required
for a port either. whether that is worth the tradeoff in performance is a decision that each person has
to make for themselves. to overcome the 9db disadvantage in excursion limited spl, you would need roughly three
anarchy horns to equal one infinity ported.
a ported anarchy by itself is pretty weak with about 83db 1w1m sensitivty and excursion limited spl of
around 104db at 42hz. so compared to the anarchy driver in a ported, the horn design kicks butt. compared
to what you can do with another design, maybe not so much.