Why do you guys pursue a flat frequency response when you buy a subwoofer?


As we all know, most audiophiles spend a fortune for that flat frequency response displayed on the manufacturer's specs when you buy a subwoofer. Why do you do this? The minute you put that flat sub in your room and take some measurements, it is anything but flat (it's a rollercoaster with all kinds of peaks/nulls etc, EQ to the rescue).....So, why do you dudes continue to look for the flat line? What's going on in your mind when you're shopping around?
deep_333
Charlie!
 Dude, your gonna make the list now.

Terra Mar? 4-6 foot South Westerly a few years ago. Nice left
Sad loss here yesterday. 

M
For those looking for music subs that aren't like cheaper HT oriented subs, I wonder if the home studio sub category would be a solution.  Sweetwater has a ton of options.
Deep pondering your post... what does REW run result look like for in room ? The frustration in room 2 seems to be more with recording variations? Can you post a frustrating track title and the SPL where troubles begin or end... Also you can high pass the mains with a 6 db per octave filter available from Vandersteen which is part of his systems engineering approach to powered bass integration- not advocating a switch in your speakers. Traveling today,
@m-db  yes that is Terra Mar :-) red tide going.... on top of reopening...
On the subject subs. Too much over thinking I have 4 15 inch woofers in my 4 way speakers total of 60 inches of woof, you can feel your rib cage vibrate at just the right volume problem solved enough said have a nice evening.