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Old 26th March 2009, 07:28 PM   #1
Mr Evil is offline Mr Evil  United Kingdom
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It's been a few years since I was last here. One of the last posts I made was concerning an idea I had to fashion a horn subwoofer into a piece of furniture in order to turn the huge size from a disadvantage to a feature. After all this time I finally got around to actually building it. You can read a full account on my website.

The attached photo is of the completed subwoofer... and bed. It is very loud, and has substantial output to below 20Hz. It sounds amazing (but of course you you expect me to say that).
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Old 26th March 2009, 07:30 PM   #2
Mr Evil is offline Mr Evil  United Kingdom
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And here's a picture of the original model, showing what the interior looks like.
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Old 26th March 2009, 07:32 PM   #3
Mr Evil is offline Mr Evil  United Kingdom
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This is a graph of the measured in-room frequency response. It's very inaccurate due to the poor microphone and being in-room, but it is interesting to see anyway.
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Old 26th March 2009, 08:23 PM   #4
planet10 is offline planet10  Canada
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excepting that most people don't have a bed in their listening room, that is cool... do you move often?

dave
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Old 26th March 2009, 10:15 PM   #5
Cal Weldon is offline Cal Weldon  Canada
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Something to spice up the love life? Honey, what's that buzzing?

Gotta like the ingenuity.
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Old 29th March 2009, 01:10 AM   #6
Mr Evil is offline Mr Evil  United Kingdom
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Quote:
Originally posted by planet10
excepting that most people don't have a bed in their listening room, that is cool... do you move often?

dave
Well, any piece of furniture will do. I remember seeing a coffee table horn somewhere, a bed just happens to offer a huge amount of volume. I might have to work on a smaller one because of course everyone wants a new subwoofer now they've heard mine.

Fortunately I don't move often. I had to assemble some of the panels in situ because it was too bulky to move, so I think it will have to be considered a permanent part of the room now.
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Old 30th March 2009, 01:49 AM   #7
nemonowhere is offline nemonowhere  United States
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Have you ever fallen off your bed because you were listening to music?! Talk about "magic fingers".

Now a noob question.. What source are you listening to that has frequency output below 20hz?
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Old 30th March 2009, 11:39 AM   #8
Mr Evil is offline Mr Evil  United Kingdom
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Quote:
Originally posted by nemonowhere
...What source are you listening to that has frequency output below 20hz?
I listen to a lot of electronic music, which sometimes has subsonic content e.g. I just bought The Prodigy's new album "Invaders Must Die", which has some. And my own music sometimes extends below 20Hz ("Song65" on that page has quiet a lot of inaudible sub-bass).
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Old 30th March 2009, 07:04 PM   #9
nemonowhere is offline nemonowhere  United States
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Quote:
Originally posted by Mr Evil

I listen to a lot of electronic music, which sometimes has subsonic content e.g. I just bought The Prodigy's new album "Invaders Must Die", which has some. And my own music sometimes extends below 20Hz ("Song65" on that page has quiet a lot of inaudible sub-bass).
Are you listening on a cd player, record player, other? I can't think of a commercial source that outputs lower than 20hz (unintentional phono "rumble" doesn't count), but then again, I'm a noob. Unless you were connecting your analog synth direct to your amp.

Going to your site to check out your tracks.

Congrats on the nicely built bed!
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Old 30th March 2009, 09:01 PM   #10
Mr Evil is offline Mr Evil  United Kingdom
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Quote:
Originally posted by nemonowhere


Are you listening on a cd player, record player, other? I can't think of a commercial source that outputs lower than 20hz (unintentional phono "rumble" doesn't count), but then again, I'm a noob. Unless you were connecting your analog synth direct to your amp.

Going to your site to check out your tracks.

Congrats on the nicely built bed!
I use my PC as the source (which is what I use to create the music too). I'm still working on getting the best sound out of it, but at the moment I'm using the on-board sound, which I just measured as being -3dB@8Hz.
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