Why the fascination with subwoofers?


I have noticed many posts with questions about adding subwoofers to an audio system. Why the fascination with subwoofers? I guess I understand why any audiophile would want to hear more tight bass in their audio system, but why add a subwoofer to an existing audio system when they don’t always perform well, are costly, and are difficult to integrate with the many varied speakers offered. Additionally, why wouldn’t any audiophile first choose a speaker with a well designed bass driver designed, engineered and BUILT INTO that same cabinet? If anyone’s speakers were not giving enough tight bass, why wouldn’t that person sell those speakers and buy a pair that does have tight bass?
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Dear @lewinskih01  :  First than all you ask to a man that's a seller always. That person not even has in his system that four subs array but already making  advise about and telling stupid things like that : " that's exactly how it works ", and this with out first hand experiences in his room/system. I don't care that he is a tube manufacturer because this at the end means almost nothing on what we are talking here. Audio kinesis is a seller too.

Of the people that I know is not a seller and has first hand experiences with more than two subs is noble 100 and he has no interest to sell you or at any one nothing but only shares his first hand experiences.

Btw, that tube manufacturer a few months ago posted in a hot discusion with me in the analog forum that he did not needs subs in his system because he has a very good system response down to 20hz with passive speakers. Obviously he has no idea about and even today he does not knows what's talking on this specific low bass/subs management and he will know when he finally has first hand experinences at his place, not before.

Measurements always can help but if I was you or @mitch2  I must ask my self:

with the two subs I have and at my seat position have I good low bass perception: tigth, full, no resonances, no overhang and pristine definition on that range and great midrange/highrange performance?

if the answer is yes then we have to add nothing, two subs are more than enough and if yes then that means that the subs location is just rigth. Will improves in remarkable way adding two subs for a way better  quality performance at my seat position?, maybe you even can't say was a true up-grade. With low bass your ears will know all about if you know how low bass  performs in a live event seated at near field position. If we don't have this kind of experiences then we need ( a must to ) to live that experiences before any move /action regarding low bass/subs. It's up to each one of us.

If you need more than a one listening seat position the a third or four subs could be better but even with 2 subs maybe you can ( ? ) do better  moving a little your subs today locations, not drastically, only little movements with. Additional you always can use a parametric eq. for those subs and all these before adding two more subs.

At the end the " move/action " we make belongs to each one of us.

I like the Harman white papers because are an abstract work/research/modeling that try to sell nothing only sharing first rate information about.

Here two links that can help all of us:

https://forum.blu-ray.com/showthread.php?t=48286

https://www.bringtheruff.com/using-multiple-subwoofers-to-smooth-bass-response/


@noble100 , I already " finished " my tests on that low bass stereo/mono recorded or not and the response on what we are listening. I will post about in the other thread following our dialogue.

Regards and enjoy the MUSIC NOT DISTORTIONS,
R.


LOW bass is pretty cool for HT. I became obsessed with getting 20 hz extension in my 2 channel room and a couple of the big hitters couldn't give me anything below 40 hz even tho JA's measurements showed both these speakers were capable. I brought my big a$$ dual side firing 12" sub into the room and within a half hour I was getting smooth flat measured bass all the way to 20!  All that experience showed me was my can lighting and duct work is noisy and I brought the sub back into the tv room.Now i'm happy with 40 hz extension and find more is less when it comes to deep bass and music.
@rauliruegas 
Not sure why you are attacking atmasphere. He's not selling subs. Over the years Ralph has been as unbiased as I can expect from a manufacturer, even when explaining benefits of a SET, which is a product that competes with his amps. His experience is relevant to me.
Also you are taking words out of context. When he replied " that's exactly how it works" he was answering why subs added depth, etc, which is something I knew too - but the question wasn't pointed to me.

FWIW, over time I've exchanged with several knowledgeable people who do sell subs and don't, listen to their points of views and explanations to help form my opinion and then decide how to try it out myself.

BTW, thanks for the link to the Harman work. I'm familiar with it as I have Floyd Toole's Sound Reproduction. One material aspect of their research was time delay between the subs in the room, which is something I can't do with my setup. Neither can the SWARM system, yet Noble100 and Millercarbon report very good results, so I'm intrigued. In fact mine are Rythmik subs with more tuning flexibility so should do even better. And I do have means for proper measurements.

Regards
Oh and the Swarm system is a bad joke. The people who thought this up have no understanding of acoustics in a usually sized room. It is all about reducing first reflections. All the swarm system does is increase the number of first reflections. The result is mud. It may be powerful mud but mud none the less.