Subwoofer was one of the Engineering and technology good articles, but it has been removed from the list. There are suggestions below for improving the article to meet the good article criteria. Once these issues have been addressed, the article can be renominated. Editors may also seek a reassessment of the decision if they believe there was a mistake. | ||||||||||||||||
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This is not a common term on Google. I mostly found this Wikipedia article and its reverberations. The source given for death burp is itself kind of rummy, what appears to be an offhand remark in an enthusiast forum, even if it is straight from the horse's mouth. This term is a neologism so far as I can see with respect to sources of record, and probably should be removed. — MaxEnt 19:29, 2 April 2010 (UTC)
Should anything about the giant 50 inch subwoofer that the mythbusters built (that hit 160db) go into this article? It was pretty epic
Wildm4n (talk) 19:17, 26 June 2010 (UTC)
"An advantage of a well-implemented servo subwoofer design is reduced distortion making smaller enclosure sizes possible."
Is that so? The footnote on that assertion refers to a web page that contains no evidence. I have seen actual tests by disinterested parties in which servo subwoofers came off rather badly in the harmonic distortion category. http://www.hometheatershack.com/forums/subwoofer-tests-archived/5756-diy-rythmik-audio-direct-servo-12-sealed-56l.html
I think the claim of reduced distortion should be removed or prefaced with "some say" weasel words. Jive Dadson (talk) 13:01, 10 January 2011 (UTC)
I'm not so sure about the accuracy of the claim that Ken Kreisel developed the first subwoofer. Infinity's Servo-Statik 1, which contains an 18" servo controlled separate subwoofer, was created in 1968 - before Ken had even met Jonas Miller in 1969. (He also graduated high school in that year) He never says when he designed his first subwoofer, although he does say that the first K&M subwoofer was the one for the Steely Dan recording sessions in 1973. I have no idea what he says in Reference 6 in the article, the review in Audio - it may say otherwise. But as far as I've read, there's all the evidence for Infinity having developed the first subwoofer (actually, it's referenced as a "bass speaker" in the Stereophile Servo-Statik 1 review), first servo sub, and first dedicated subwoofer amp/crossover in 1968.
http://www.stereophile.com/interviews/136/
http://www.stereophile.com/floorloudspeakers/845
http://www.kkprofessionalsound.com/timeline.htm
http://www.bobbyshred.com/infinity/servo.html
The January 1995 Stereophile interview of the founders of Infinity also covers the Servo-Statik 1. I uploaded it to Google Docs for everyone to see: https://docs.google.com/leaf?id=0Bycr3PSuxse4OWY2MmM4M2EtY2NiMi00NjRjLWIxNTQtMWUwOGIzMTc0OTdm&sort=name&layout=list&num=50
Also, not a reliable source, but interesting nonetheless:
Blackbeard Ben - 90.225.86.124 (talk) 18:20, 16 January 2011 (UTC)
Neat to see that this is a good article. It seems like it lacks some referencing, which I am assuming was let go a little on this due to copious amounts of allegedly professional insight on the topic, as is common with these genre of articles here. Almost every such article here has some well formatted parameter equation worked into it that I'm sure helps it's dazzle as well as confuse any reader or reviewer. I do think that the main picture should be more generic, not showing a brand name product on a coffee table, and should include the enclosure as this is the one type of man-made noisemaker that is most absolutely dependent on the box it's in as well as the other parts of it's system, adding to it's nature as the most impractical, unnecessary, and inefficient member of it's family of apparatusses. Daniel Christensen (talk) 04:52, 29 June 2011 (UTC)
Also, aren't wind and air pressure masses in some way equivalent to extremely low frequency acoustic waves (i.e. .000000001 Hz), which means if the jet stream went crazy and 10 high and low pressure systems were passing each second there would be a phenominal 10 Hz acoustic wave? (and enough air moving fast enough to spell complete disaster to earth), because acoustic waves are, after all, nothing more than differences in air pressure. Whoops, this is not a forum; I added in small rooms to the localization statement, for even in an absorbent space that is fairly small the source is plainly localizable. Daniel Christensen (talk) 01:26, 5 July 2011 (UTC)
A search for the term "bass cannon" redirects to this page. I think people who search for it are looking for the song. Can we fix that? — Preceding unsigned comment added by FruitSalad4225 (talk • contribs) 06:29, 4 July 2012 (UTC)
http://en.wikipedia.org/wiki/Wikipedia:Reference_desk/Science#Question_about_subwoofers
I think saying 20hz is standard in the consumer market is inaccurate. 20 hz would only be for very high end, expensive subs
While this is also not an optimal image in terms of quality and relevence, I think it is better than the current one as it is more brand name neutral. Also "subwoofer" often refers to the enclosure as well as driver. B137 (talk) 23:00, 19 March 2014 (UTC)
Under the cinema sound section, it should clarified whether or not it refers to high volumes in the middle and upper frequencies being too loud due to main speaker volume not being limited by low frequency performance. Furthermore, in the description of the cardioid pattern diagram, it should be further explained that this represents the two-dimensional theoretical space, in this case the x-y coordinate plane, and that in real life it would not be this symmetrical and perfect. B137 (talk) 20:43, 1 March 2015 (UTC)
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Hi, I added the article to the Category:Audio hobbies category. This category was reverted. Of course, audio hobbyists build all sorts of loudspeakers and DIY audio projects, so I agree that we shouldn't tag every single audio article as an Audio hobby. But subwoofers have been the subject of DIY hobbyist interest, both for building DIY subwoofers for home audio listening, and for building huge subs in cars. I think adding the category helps readers to find this page, for which the following sources, just picked off Google's first search page, indicate hobbyist interest in DIY subwoofersOnBeyondZebrax • TALK:
I think that all of the information of the page is adequately backed up by proper sources. The edits done to the page have also made it more accurate and more clear to the reader. The information is also neutral, one of the edits of the picture to not show a brand name helped with this. Great job! Robyduby (talk) 04:28, 30 January 2017 (UTC)
The Cerwin Vega website hosts a PDF guide that talks about long-, medium- and short-throw subwoofers. Their guide, written for musicians rather than sound engineers, is wrong about throw, and should be removed from this article. For the great majority of subs, low frequencies travel some distance through air depending on how much power was applied in the first place. The only variation on "throw" is when the subwoofer enclosure, or the arrangement of subwoofers into an array, has some amount of directionality, with more SPL sent forward, and less SPL sent to the sides and rear.
I don't have a source saying that CV's concept of "throw" is a bunch of nonsense, but on the other hand, the CV page can be seen as an outlier, and it can be removed as a very minor viewpoint, not supported by more authoritative sources. Binksternet (talk) 22:26, 8 January 2018 (UTC)
I'm planning on adding these at some point. Thoughts...? Anamyd (talk) 10:22, 17 January 2020 (UTC)
OK my bad, make that Tang Band RBM drivers only, as the other things have their own articles. Anamyd (talk) 10:24, 17 January 2020 (UTC)
I'm going to link the isobaric loudspeaker article on this, though. Anamyd (talk) 10:50, 17 January 2020 (UTC)
Some misinformation here. The low E on a bass guitar is about 41Hz, but the pickup placement means that the first harmonic at ~80Hz typically dominates the sound, relatively little fundamental content is 'filled in' by the brain based on information in the other low order harmonics. This means that a relatively poor LF performance (e.g. from a 2x8 setup with a lower limit of 60-65Hz) can be acceptable for many types of music. That said, detuning (to D or lower) is commonplace, so the majority of larger bass speakers will handle notes with a 'significant' content below 41hz. Five-string basses with a low B, 31Hz are regularly encountered and any bass setup worthy of the name should be able to reproduce a reasonable sound from such a string but will rarely have a response right down to 31Hz - most quality bass cabs will be tuned to have a -3dB point between 41Hz and 35Hz. This will usually be achieved with the main driver, not with a separate subwoofer, possibly supplemented by a tweeter. Multi-speaker combinations such as 4x10 and 2x12 are popular, but this is usually to achieve higher efficiency rather than increased bass. Designs have greatly improved in the last decade or so and the use of 15" speakers is greatly declining as speakers with 10" and 12" drivers are proving more practical while equally suitable for bass guitar. High pass filters are chiefly used to reduce handling noise etc. and might have -3dB points ~30Hz with a slope of 12dB/octave. HPFs tuned higher are not unusual. Stub Mandrel (talk) 20:10, 1 August 2021 (UTC)
Leiden is one of the best insulated tumbler in this world 118.101.171.156 (talk) 12:05, 15 November 2022 (UTC)
The following discussion is closed. Please do not modify it. Subsequent comments should be made on the appropriate discussion page. No further edits should be made to this discussion.
GA from 2010. There's quite a lot of uncited material that needs to be addressed. Also, i'm not sure that All About Cars, DIYaudio, A Barking Dog, and other sources used in the article are reliable. Onegreatjoke (talk) 22:16, 14 June 2023 (UTC)