Thanks.

As to the first part of the question, the egg came first, as the first chicken was the product of the mutated DNA of whatever layed that particular egg.

But this is a sore subject for people that have to reinforce todays music. Basically it is because people have home theater systems that my system has to 'bump'.
More accurately it is because of the cabin effect(?) of car stereo's, that I am forced to extend system response.

Now I must concur that Heritage music does not have material below even 80 Hz. Todays heavy metal needs punch, but it doesnt need real sub frequency's. Rap/ Hip Hop does not need real sub frequencies either

Today's vinyl based music and protools laptop musicianship, not to mention the boundry setting of jazz and some savvy interpretations of classical rely heavily on real sub frequency.

Engineers from your generation viewed subs as luxury. What with thier extra wieght and bulk, musicians were lucky to get anything below 100Hz let alone real sub frequency's. You could say that accurate reproduction of source material was gimped by ignorance and lazyness.

But rave music changed all of that.

Forever.

So really,
-from my view point-
there should not be a discussion about source material below 35 Hz.
But how to insure that over a 100 db can be reproduced without distortion at FOH mix position.
The key word is distortion. So when the musician hits that low note on his roland 606 at full volume it doesnt stop at your system limiters Or worse yet peak out the amps or even worse yet actually blow the cones. No it doesnt do that, it comes out of the sound system unimpeded, truly "reinforced" and brings the crowd to a peak of extacy.

The sad thing is that system designers think that limiting is a viable solution to fielding a balls-less sound rig.

Hey, there are a lot of people who have the same misconceptions as to what kind of low frequency requirements there actually are for live concert sound, and more than a few of them are in the pro-touring sound business. Even the pro-touring sound companies that really know their stuff typically will set up four times as many subs at a gig than are actually required. Why? Because the musicians and their tour managers insist on it, if only for the visual impact. The sound companies don't care if they're hauling extra gear and having to use more roadies than they need, they're being well paid for them. One more reason why you don't see $25 concert tickets.

Here's an RTA of ZZ Top in action.

As I said before Heritage bands need nothing more than a 'punchy' kick.

Do you get any bands in your arena that arent collecting Social Security?

This RTA is not significantly different from those taken at a concerts by Ja Rule for one, as well as Deep Purple, Ted Nugent, David Lee Roth, Sammy Hagar, Brooks & Dunn, CS& N, Styx, Kansas, a dozen odd new wave acts whose names I don't remember (and in six months no one else will remember them either), and interestingly enough, the Boston Pops. While the gross SPLs of acts varied over a 10dB range the actual frequency content remained relatively constant, with Heavy Metal acts being the only exception, as they tended to have very little midrange content.

None of those bands have low bass in thier music. It isnt thier style, even mainstream hip hop lacks decent bass. Thier old school roots tend toward the thump of a cheap drum machine kick.

So I guess you won me over. Mainstream arena music sports the frequency reponse of a yamaha ns10. You are right-if you are filling the rider for mainstream you may as well send out empty sub cabinets.

Even the Boston Pops could save money by leaving thier subwoofers at the next truckstop. More room in the trucks for lot lizards.

I am curious why even participate in a conversation about improving subwoofer performance. Wouldnt you be better served, wringing better response from a one box does all system?

You have data to prove that for all intensive purposes, a sound system only needs to go as low as 65 hz.

Albeit, at best you would have a "tight" 65hz coming out of a one box system, but from what I see in your data, who cares?