Why the fascination with subwoofers?

Dear @lewinskih01 : Good that make sense to you but I think that you are losting a main critical premise/parameter/characteristic on the subs overall subject, been 2 or 4, and is that separated subs ( 2-4 . ) is the way Harman speaks and I additional posted that a main target integrating ( at least. ) two subs is to put at minimum the IMD levels in the main speakers and both targets, the Harman and mine, can’t be accomplished in the way your " common sense " says to you.

Got it the huge differences? 2 or four subs permits to place it in the ideal position for the room/system and the same time that the IMD in the main speakers goes way lower than ever.
You can't or maybe is almost imposible try to find out/playing with several positions of two subs along the main speakers woofers . Normally the main speakers mid/high frequency range we already has/set up in the rigth main speakers position and we can't make many position changes to see if the bass improves and with out lowering the main speakers IMD ! ! 

In the other side and again makes no sense to me follow talking of more than one seat position to listen a stereo room/system because exist only one seat position that is " rigth/correct " to listen spot-on the mid and high frequency ranges.
Who cares other than one seat position to listen it if really does not exist. Makes sense to you? or is that you only listen to the bass range? ! ? ! ? ! !

My post is not against atmasphere and again I’m only disclosing facts that he showed don’t understand very well yet. I’m sure that when he already have his two subs his way of think could be a little different or maybe not ? !.

Regards and enjoy the MUSIC NOT DISTORTIONS,
R.

Dear @lewinskih01  : but how can a universal amplifier design handled  woofers ( passive speakers. ) in better way that the dedicated amplifier on a self powered subs that was designed in specific to fulfill the woofer needs?

makes you sense too?

I'm sorry but now your last posts to me make no sense at all. Please don't lost or move from the subs focus/specific subject. Forgeret about atmasphere but not because you want to " deffend " it ( that tehre is no reason to do it because you have to deffend him for nothing because no one is against him. ) lost the main subjects in this thread.

R.

Dear @noble100 : As the other gentleman I already posted you are loosing the main focus of bass management and you are doing because as lewinsky you are deffending some one that does not needs no one deffended him because no one is attacking him. Please read my last two posts. I only disclose facts, attacking no one in any case he is " attacking " him self for what he posted.

Last but not least: he has not first hand experiences with the subs overall subject in his own room/system.

In the other side I know very well whom is atmasphere and maybe better than you. Period.


R.

@rodman99999

When I first built my woofer system, it was designed(1980-81) to mate well with my Acoustat Model IIIs. It’s worked seamlessly, with everything(mostly planar) I’ve owned, since(various active crossovers, amps and one driver change, but same transmission line cabinets).

My distributed array woofers are used with Acoustat Model IIs with the Acoustat direct drive amps and a Beveridge RM-3 active crossover. I feel it is very well integrated and also works well with other speakers (Quad ESL and Spendor 1/2e). I don't think Duke LeJeune gets the credit he deserves for following this path and his DBA design certainly inspired what I am doing today.

Of the response to my question that I have seen so far, I thinks Ralph's is notable for his reference of tight base as an artifact of sound reproduction.

Dear @pwhinson  : You have great passive speakers but even those could be improved making changes/up-grading in the bass range.

I would like to know which is the frequency range ( wide. ) handled by that quasi-ribbon bass " module ".
The specs says that from 25hz but does not mention a crossover frequency range and was not mentioned too if that 25hz is its +,- 3db point because if not then those 20.7 in reality perhaps goes not more than true flat 30hz.

Even that are quasi-ribbon design and normally low distortion levels exist true distortion levels in the kind of IMD developed by the bass driver that affects all the other non-true bass frequencies handled by that driver and this IMD generated could goes lower.

I know that the Magnepan designer does not like hybrids designs but other ribbons designs came with integrated subs and works really great.

From my point of view the noble 100 solutions are only an opinion and for me not the best option.

You said that maybe there is no much information below 25hz and I can tell you that even below 20 hz exist recorded information that's really valuable if youy room/system can shows it. The Swarms solution goes down to 20hz only: 18hz in ported/vented fashion or 22hz in sealed fashion. Is it a complete solution?, not for me: it's a quasi-solution.

The 20.7 crossover frequency is a must to have before you take any solution about . Subs are not only to have evenly low bass room/system response and goes deeper in the bass range but perhaps more important that those is to take that IMD distortion levels at minimum and with this your overall quality performance levels will go higher and you will enjoy those 20.7 better than ever before.

Regards and enjoy the MUSIC NOT DISTORTIONS,
R.