It is an option, just looking for others.
Not sure any driver should be considered 'the' choice as a blanket suggestion.
Whether it be 12" or 15" or 18".
The larger derivers do move more air(the good ones) which in turn pumps out the output....which is never a bad thing in my opinion.
For example I owned a eD A5-550 and it wasn't loud enough.
Nor did it handle sub20Hz BR bass well enough.
Just keeping my mind open to all possibilities.
The Shiva-X gets alot of talk and it is only 12"....and is also the other 12" driver on my list.(can't afford 12w7)
HTS members are also very big on big drivers.
Another thing to consider is that this is my first build, so a difficult design(for me) is not something I want to get into for my very first build.
Are there any simpler, cheaper vented designs?(slot is even o.k., just not a complex design)