Are big subwoofers viable for 2 channel music?


In thinking about subwoofers to get for a large future listening space (30' x 30'). So far there seems to be a lot of great options for smaller subs for music.. such as the rel s812. Now my main focus will be music but I do plan to do some home theater on the system and I do enjoy subs that reach low and have strong but clear sub-bass. Would a large sealed sub still be able to provide clean tight bass that digs low and thus satisfy both duties. Can it ever match the speed and precision of a pair or more of rel 812s? Something like PSA S7201 or Captivator RS2?

A realize a smaller sub has a smaller moving mass and thus for a given level of power would be faster than a bigger sub with a bigger moving mass (driver mass). But a large sub would have to move less to achieve the same SPL and would reach lower.

Anyhow what do you guys think? Thanks.
smodtactical
Hello smodtactical,

   " Do big subwoofers just automatically mean someone is a bass head and the bass they are getting is of poor quality? Many people here said that a well designed large subwoofer is not inferior or slower than a small subwoofer. Do you disagree with that sentiment?"

     No, I don't think using big subwoofers automatically means someone is a bass-head and they're relegated to poor quality bass.  I believe there's a variety of viable options using 2 or more subs to incorporate better bass performance in the lowest 2 octave range, about 16-32 Hz in frequency, into one's system and room. 
     Unfortunately, I just understand I lack the knowledge and personal experience of the various possible options, including the use of various sub sizes, to confidently and reliably state how well large subs perform on music and HT as compared to multiple smaller subs. 
   I can tell you with complete confidence and certainty that the AK Swarm or Debra DBA , utilizing 4 rather small subs and priced at a complete kit price of about $3K, will provide near sota bass response for music and HT.
     I suspect that 4 larger subs in a similar DBA configuration, however, would perform at least as well or likely even better than either AK system.  The best suggestion I can offer you is to select 4 larger subs, from a vendor with a liberal return policy, and give it a try.  The main drawbacks would be the time, effort and the required optimum setting of the volume, crossover frequency and phase controls on each sub individually.

     "  Besides, I don't think there's much if any available music or HT source material that has content below about 20 Hz."Another statement I see often. Pipe organs can go below 20 hz and I find frequencies below 20 hz provide an incredible sense of space, scale, growl of the organ that I really love. Also lots of my EDM/techno/ambient goes below 20 hz. So I think there is value there."

     I formerly believed commercially available music and HT content had bass extension below 20 Hz, too.  But then someone asked me to identify a single commercially available music or HT recording as an example.  I searched for a while but couldn't find a single example, not even one.  Of course, you're more than welcome to try and find an example if you'd like. 
     The closest I could find was a group of guys that discovered an arcane method for retrieving any sub 20 Hz content from some discs if any trace of the original master recording with deeper bass extension was still accessible.  They maintained a list of such discs that did on some online site I've forgotten.  Talk about bass-heads.

Best wishes,
    Tim  

Hey sorry to revive the thread but now i am in the future space I mentioned. Its 32 x 34 feet x 8 feet basement. I am only doing music / hifi here no HT.

I am thinking of what subs to get. I got some dual gsg audio full martys for my HT and i love them. I wanted to know if I should go that route for this space or mix and match approach with multiple different subs. Looking to buy used to save money. I am in Canada. I have been all over canuck audio mart but can't find anything that I think is a good deal.

Normally I would say that if you like the gsg then I would go with the gsg. But your case may be a bit more complex. It appears that the gsg subs are passive so depending on what amp you use, you may not even have low pass capabilities not to mention any phase control. It will also depend on what main speakers you pair it with. If you are going to pair it with a full range floor stander that cycles quite low and use only a low pass filter then you will probably be not be using much of the subs potential. If you are going to pair it with a smaller main that doesn’t cycle low and use an active crossover then you should be good to go with the gsg, though I would go with the 18” over the 21”

Honestly I have thought of this same issue. I also have a large basement setup that is 95% two channel and 5% home theater. I have looked at large home theater subs (JTR captivator etc.) online and read up on them but almost no one uses them for two channel. I think they would be just as good for two channel but have no idea. I think there is very little crossover between the crazy custom HT crowd and the highend two channel crowd. I think you should let us know how it works lol.

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