My experience adding subwoofers to 2 channel

Thanks Tim!It really is pretty amazing:)I think a lot of people don't take it seriously when they first run across the concept.At first glance it doesn't seem to make any sense.The more I researched the more convinced I became.I really believe that multiple subs and room treatments are necessary to get the best out of a music system in moderate sized rooms.

m-db:
"Tim, actually I'm more impressed than thrilled by the economy and positive user comments regarding your DBA Swarm system. You have created a user friendly solution to an often ill informed segment interested in true full range listening. "


Hello m-bd,

     Thank you, but I didn't create the excellent DBA system solution.  All the credit belongs to Dr. Earl Geddes, Dr Floyd Toole, Todd Welti, Duke Lejeune plus probably others I'm unaware of that also made contributions to the concept. 
     My contribution was just to have the dumb luck to give the Audio Kinesis Debra 4-sub DBA system a try and almost immediately recognize how extraordinarily well it actually performed.
     The first time I experienced the quality of the bass reproduced by the 4-sub Debra DBA system and how seamlessly the bass integrated with my main speakers, I sincerely felt it was a revelation and an awakening to actually hear and physically feel this level of bass quality and integration with my music, on my system and in my room.  
     Initially, all I wanted to do was enjoy my significantly upgraded system for hours upon hours on musical and ht content while constantly reminding myself how fortunate I was to have this DBA in my system.  4 years later, I'm still enjoying it just as much.

     After a few weeks of first experiencing the DBA's extraordinary bass performance, I came back to earth enough to be perplexed about why it took so long for me to learn of the DBA concept and why more Audiogon members apparently weren't aware of and utilizing DBA systems.
     At this point, I felt an obligation to get the word out about how exceptionally well this DBA system concept actually performed in my system/room and how it was likely to perform at least equally well in others' systems.  
     So, I began by starting an Audiogon thread on the DBA concept linked to below: 

https://forum.audiogon.com/discussions/anyone-else-using-an-audio-kinesis-swarm-or-debra-distributed...

     I've also been trying to get out the word on the effectiveness of DBAs by consistently trying to post responses on threads on this site concerning the use of subs, such as this thread extolling their virtues.  I'm not sure how successful I've been but I'm going to keep trying to spread the word.  I  find it very difficult to overstate how well the DBA system actually performs in my system, know it will do the same in any system regardless of the room and the main speakers used and believe it's too good of a bass solution not to eventually be well known and widely utilized. 


Tim

Erik squires is right , proper calibration ,and a  high quality sealed sub is allways 
more accurate then the same size in a ported ,or passive radiator model.
buy a usb Mike, and this free program   http://www.roomeqwizard.com
And just spend a little Time to get to learn it .with the excellent SVS app
you can accurately tune the bass in any room.

@noble100, I agree, you didn't state that you can't use four Rythmik subs in a swarm type system. Ya know what I didn't say? That you DID say that. Why do you think I think you think you did?

I use a pair of Audiokinesis Dream Maker speakers, plus a pair of their LCS "effect" speakers firing towards the ceiling. I just want to point out that the LCS helps with the bass too, although their main purpose is to enrich the total sound (a variant is called "Space generator"). Each LCS has two 8 inch woofers and a tweeter. Combined with the two 10 inch woofers in each main speaker there is quite a lot of "woofer power" which fills my 20 x 27 feet room nicely. Although the bass would probably be even better with a Swarm or Debra system, I can do some of the same thing - position the LCS for best bass, ’decorrelate’ the sound, etc. I had a Velodyne DD18 sub that went deeper, but also introduced tension in the sound (and two REL subs before that). All in all I prefer the system I have now. In my system it is important to fine-tune the volume of the effect speakers relative to the front speakers "just so" - and further down than I thought at first. They should almost not be heard, "disappearing" behind the front speakers, yet adding to the total sound experience.