He means Alpine SWR-12 is about 10 steps below the JL. Diff range.
But I think you're asking about amp choice.

And surprisingly both are very spl style instead of pure sq

And surprisingly both are very spl style instead of pure sq

And surprisingly both are very spl style instead of pure sq

jl w6

You can try JL W7 also.

w7 i think is 2k+
w6 maybe 1.5k
w3 1.2k
my guesstimate. howie can give you family and friends discount.
ima guessing the rest of your system more on the 'mid' end level.
i recommend you get the w3 and spread the cash a bit over to the amp.
my fav value amp = zapco 500.1
audison, genesis, focal, etc sound roughly the same to me, so might as well get the cheapest (focal).
no...... sony, pioneer, alpine, pegasus, if you're looking for sq.
errrr....... go visit howie and talk to him 1st.
he dmn lansi one, wont layan you unless you go to his shop.

mywifecar got chap ayam china sub that won him the championship, if you can catch him, have a listen.