I really want a SQ setup, but i also want it too get LOUD. Im kinda leaning towards the LMS-4000, but do you think the 5400 would be worth spending the extra money?
I have a 200 amp alternator, big 3 done, optima, and 0 gauge through the whole car. I could always get another battery.
Well, either sub can and will give you nice SQL which is very much dependent on the install of course.
It seems you have an elec system that can support your choices so im not worried about that.
Basically what its going to come down to is this, if your dead set on getting the TC's then go for it. Either one is most likely going to sound great (between the 4000 & 5400) and of course its going to take a bit of power to get them going.
IMO though, id go with the mags basically because they will get the job done just fine (I still think you'd be shocked either way) once again dependent on the install they will sound good, and will get a lot louder then you'd be able to stand for too long. All while using less power and not taxing your elec system as much.
That would just be my personal choice. Either way is going to be loud.