Searching for matching(?) Subwoofer solution

Hello Hans,

    I bought my 4-sub DBA system, the Audio Kinesis Swarm, for $2,800.  Here's a link to a review of that that system: 

https://www.theabsolutesound.com/articles/audiokinesis-swarm-subwoofer-system/

     Millercarbon built his own custom 4-sub DBA system, a copy of the Swarm but with upgraded woofer drivers, for about the same price.  I'll let him describe this option if you're interested.
     You could also build your own custom 4-sub DBA system by purchasing 2 pairs of the SVS SB1000 subs for about $1,900.  This option, however, is the most difficult to properly configure because the three important settings, volume, crossover frequency and phase, need to be set on each of the 4 subs.  With my Swarm and millercarbon's custom Swarm clone, all three controls only need to be set just once on the sub amp/controller for all four subs as a group.

     Any of these three 4-sub DBA system options will result in excellent perceived bass throughout your entire office.  The 2-sub option I mentioned will provide a more limited area of very good perceived bass centered on your desk chair position.  From your desk chair, all options will provide very good bass response that will sound seamlessly integrated or blended with your main speakers.

Tim

Dear @hleeid : "" I am still a newcomer to this hobby and am beginning to realize just how much there is to learn about these things. """

In audio always there is something to learn and speaking of subwoofer subject a lot to learn/understand.

First is to understand why with passive speakers we need subwoofers, second if we are listening music in HT fashion or just stereo music and third the bass range quality level we want it.

If you mainly listen MUSIC ( stereo system. ) then please read with care this post:

https://forum.audiogon.com/discussions/do-you-think-you-need-a-subwoofer/post?postid=310058#310058


Listening to MUSIC what we need is a good overall quality room/system at one seat position.

As a fact main speakers mid and high frequency ranges can have only one seat position where both frequency ranges are " optimal " and what we want is that the bass range be " optimal " too.

Now, your speakers small woofers handle a frequency range that goes ( -3db. ) from 48hz to 2khz and works down to 32hz.

That frequency range that handle those small woofers is really wide and makes that the Intermodulation Distortion levels in the speakers goes really high ( in that link is the explanation about. ) and this is the main reason why you need subwoofers that at the same time gives you not only a lot better quality room/system reproduction from your speakers ( midrange/high range. ) with lower overall distortions levels but now you will have at your seat position that really elusive and critical bass range, not boom boom but a true quality bass range and for this you need that the subwoofers bass range goes lower than 20hz that is where belongs a true subwoofer ( With all respect the ones in the link that other gentleman posted are not true subwoofers due that goes down only to 24hz but neither the ones that comes in the post speaking of 4 subwoofers. Both advises can’t give you the third characteristic I mentioned before: bass range quality. The kind of bass range at one seat position of those advises are rounded in the mediocrity/average. Perhaps in a dedicated thread I can explain to those gentlemans the real meaning on what I’m posting here. ) and that the subwoofers gives you a lower self distortion levels: you are looking for quality not only bass, at least is my understanding for what you ask. Of course that I can be wrong.

For just MUSIC it’s worth to invest in good quality pair of self powered subs with kigh pass filter. No, not 8k and you can find out true high quality subs in second hand market even here in the Agon list advertasing.

But if you want the subs mainly for HT then things are different because the HT overall need it quality is different too and had several seat positions. HT needs are different from just stereo MUSIC listening.

Regards and enjoy the MUSIC NOT DISTORTIONS,
R.

Hans,

     There are a large number of very good quality subs currently on the market that would work well for you in your home office and with your Ologe main speakers.  The choice is yours and I'd only caution you to make sure the subs you choose have the following features:

1.  Line level and speaker level inputs.  The line level inputs allow for connecting the outputs on a preamp to the sub via rca cables.  The speaker level inputs allow for connecting the speaker outputs on a power amp to the sub via speaker wires. 
2. Controls for setting Volume, Crossover Frequency and Phase.  The proper setting of these controls are required for seamlessly integrating or blending the bass coming from the subs with the midrange and treble coming from the main speakers.

     In general for in-room bass, two subs will sound twice as good as one, four subs will sound twice as good as two and eight subs are valid grounds for divorce.    
     Once two or more subs are deployed in any given room, the very important and beneficial psychoacoustic principles come into play.  Psychoacoustics refers to how our brains process sound and perceptions of sounds are formed.  I'll post again soon to describe the primary role psychoacoustic principles play in explaining why the 4-sub DBA concept is able to provide such exceptionally good bass performance in virtually any given room.

Hi hleeid, I live just north of you.I was grew up in Newton.  Which Ologe speakers do you have and how far apart are they? If I remember correctly they are dipoles? Which wall do you have them on? What type of floor is it? Concrete or wooded joist construction?