The blog just barely or should I say hardly touched the topic in any kind of serious manner. I personally think the sub is an appropriate tool to use in any studio and mixing without one is akin to mixing using only headphones. Not to many would do that from what I gather reading the posts here.
I used 5" Mackie monitors for a long time. I saw a good deal on a 10" 100w powered active Polk (home stereo) sub woofer and decided to take a chance.
Knowing Polk makes fine audio gear, if it didn't work on the studio setup I would move it to the TV room.
A bit of adjusting and playing some commercial CD's to get it sounding right was all that was needed to get it tuned to the room.
(I also have ARC in my studio)
I would not mix without a sub and now I rarely turn it off for tracking or mixing. I'm not so much worried about the noise and rumble down there as I am about hearing what the bass guitar, the kick drum, and the lower piano and guitar notes are really doing. The sub makes all that very evident and clear. The kick drum and bass are critical in a mix and with a sub, you can actually hear the pitch of the kick. It's not just a thump.
If you know my music you know it's primarily country in style and some rock mixed it now and then.
Does any one of you who play bass guitar use 5" or 8" speakers on stage? Why not? Simple...... Because they don't move enough volume of air. Same thing applies to your studio. Your mix will end up being played (in some cases) on systems with subs in them so you really should be hearing what you're mixing. 5" & 8" speakers will not get you there like a 10"/12" or 15" sub will.
Without a sub, even with the best of 5" or 8" monitors, you're mostly guessing to one degree or another as to the proper level and tone on the bass end of the mix. Now I do agree that with enough time and some trial and error, it is possible to "learn" what works on other systems..... but I'd rather hear it than to guess at it.
And as for me personally...... heck, I just like the "ear candy" of hearing that bottom end working like I know it's supposed to.