Best Midbass woofer for solid 30hz - 2khz

No, as we all know a FR has its limitations.
There is no denying that. Field Coils may over come all the issues, I have no idea. I have to work with what i have.
So lets forget FC’s for the moment.
We already have superior bass in the Thors W18’s these are not the EX,001 only the entry model E001.
Had I swaped out a  E001 for say a  EX001 or a  Graphene, may not have made more than a  ~nuance~
I’m looking for a real modification.
So my research tonight has brought us to
The Real Deal.
That is Seas newest W18 driver, the Nextel 003 which replaces the Nextel 001.
The 003 has a titanium voice coil and a larger magnet.
2x’s the price of the 001, but worth it.
Troels has nothing but the highest praise for the driver.
Thing is, its so new hard to find a dealer.
Found one in the UK, ,,, will conatct madisound tomorrow, I’m sure it will bea special order, so means wait time and ship fees.
I’m in no hurry as i don’t have $800 cash right now, that went in the Thors upgrades.
Glad my time spent researching tonight, about 4 hours, brought me to the W18NX003.
here is what led me to this speaker. Richard Gray mentioned his favorite material for woofers is the humblev ~Paper cone~, I tend to agree, So knowing the Nextel does in fact have a treated paper cone, I made further research into the Nextel.
By mere chance I ran across a article from partsexpress / report in Dec last year on the newest Nextel design,
The W18NX003.
From there I went to Troels page where he has very wonder-ful things to say about its build and performance.

http://www.seas.no/index.php?option=com_content&view=article&id=591:w18nx003-nextel-news&...

Just waiting on Richard Gray to say 
~not doable, different specs~
in the morning.

I would go with an original vintage extended range driver that will cover that range easily and with more finesse and resolution than a new driver but you will have to use an appropriate sized baffle and cabinet to properly mount the driver into.

Mozartfan, that's nice. Then the crossover screws it all up. If you want really accurate midbass go to a planar magnetic, ribbon or better yet ESL loudspeaker. Dynamic drivers just flap in the breeze. It's like running your outboard motor in air. 

so like what would you prefer
a   woofer that goes down to 20hz-40hz
OR a   woofer that *Only* goes as far as 40hz, but voices the 40-1500 with purity/fidelity???
I know which I would prefer,
I have lost all interest in seeking 20hz-40hz's
as in our music there is less than 1% represented in that range,
= the 99% is most important.
Besides if we did a  blind A/B test, 1 speaker goes to 20hz, the other *only* 40hz, 
could you blind test which is which ona  record that actually has the 20-40hz represented??
I doubt it, 
Lucky guess. 
We need to  redefine  how a  woofer should perferm. Regardless how low it goes.