How do I know if I need a sub woofer?


My system at the moment is not important as this question would be relevant regardless of of what I am listing to at the moment. 

sounds_real_audio

As long as you own good speakers that (1) comfortably reach down to the low 30Hz range, whether floorstanders or bookshelves, and (2) have reasonably wide horizontal and vertical dispersion, you don’t need a subwoofer. I’m talking strictly about music listening.

@lanx0003  That’s just simply not true.  Along with bass there’s considerable information below 30Hz that conveys sense of space, expands soundstage, and improves imaging.  I’ve heard this on several $100k+ systems (along with my own where my speakers go down to 28Hz @ -3dB) where the speakers went well below 30Hz and when the subs are turned off the soundstage just collapses along with a good level of overall enjoyment.  

…there’s considerable information below 30Hz…

+1 @soix - it’s obvious once you hear it 

Maybe you haven’t heard a truly good system that delivers excellent imaging and soundstage without the aid of subwoofers. At audio shows, high-end systems are usually not demonstrated with subs. Dealers want to highlight the unique, inherent sound characteristics of their speakers and electronics—not the contribution of a subwoofer. On the rare occasion when a subwoofer is present in a demo room, the first thing I (and many other audiophiles) ask is, *“Is the sub on?”* If the answer is yes, the immediate request is usually to turn it off.

Listen, I don’t wish to argue with you—especially on this subject. My personal conclusion, based on numerous trials with one or two subs from AR, SVS, and REL (brands known for musicality), is that none of these experiments have been satisfactory to my taste. Even when I carefully dialed in the position, crossover, phase, and volume, and set high/low-pass filters to leave headroom for amplification, EQ, and other fine adjustments, the results still fell short in terms of pace and texture. Larger woofers sitting in separate boxes, driven by separate amplifiers, are just extremely difficult to blend seamlessly compared to the integrated subwoofer designs you find in speakers from companies like GoldenEar.

And yes, I did miss out on those sub-30Hz information, but I would rather have a coherent, natural presentation of the music than be distracted by non-integrated bass floating around my listening space and ruining my appetite.

 

If you have a 2 speaker stereo setup I suggest getting a sub.  Probably 2 depending on the room.  Even with a soundbar setup a sub helps the sound in my experience.  

@elliottbnewcombjr....buy a stereo pair of front facing subs, no ports, and locate them adjacent to your mains, to you gain more lows and get the directionality contributing to imaging that the overtones give.

Your comment may work very well with -6dB sub-bass woofers as their dramatic mid 30hz roll off does not excite a rooms bass modes despite the main speakers often being located in a middle of the rooms extra low frequency draining null.

-3dB subwoofers require very precise standing wave bass mode room positioning to enjoy the subwoofers delicate extra low frequency potential which is present on many recordings.

Unfortunately there are no requirements to qualify using the word subwoofer. Fortunately manufacturers such as REL and Perlisten publish their low frequency limitations. Buyer beware.