All good points. Lol
Except all the subs recommended to me have been behemoths.
Even the hsu vtf15 is pretty huge.. but smaller than some of these 18s.
Here's what im struggling with.: The HSU VTF15 is about $1000 shipped, comes with a finish I like, and by all accounts sounds pretty good. It has a 15 inch woofer, variable tuning ports, and a reasonably powerful 600 watt amp.
I've been trying to ask if something similar in size, but much more expensive would sound better.... Ie., JTR with a custom veneer, or a gloss Svs PB-4000, maybe a Rythmik with custom finish, etc.
However, in these cases the subs are literally twice the price, each. Lol
I'm okay spending that if it's warranted for future proofing my setup, but only if it's something that makes sense.
That cash could be also spent on an amp, more LSI speakers, a nicer tv, etc.