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SQ SUbwoofer Dilemma...

Started by Pulse-R, Feb 10 2010 07:20 PM

91 replies to this topic

#1 Pulse-R

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Posted 10 February 2010 - 07:20 PM

look at the graphs, and guess what this is all about. then decide if I'm on the right track.
(no cheating fury).....

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Edited by Pulse-R, 01 March 2010 - 05:02 PM.

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#2 SCorpion

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Posted 10 February 2010 - 07:51 PM

Ported box tuned high Witt sub playing under unloading frequency?
Please note: Any technical discussion of a topic by myself implies that your ears will be the ultimate measurement and that enjoyment of a system is the ultimate goal!

Also, chances are what I am talking about is absolute rubbish and that the reader shall derive his own conclusions from the above comments!

#3 shiny_car

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Posted 10 February 2010 - 08:00 PM

MS Paint?

:)

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#4 Fury♫

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Posted 10 February 2010 - 08:17 PM

tehehehehehe :)

What size enclosure?
Interested to see cone displacement at 5hz! :)

#5 zion187reigneth

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Posted 10 February 2010 - 08:27 PM

Pulse-R, on Feb 10 2010, 08:20 PM, said:

look at the graphs, and guess what this is all about.

your definitely not watching "so you think you can dance"

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#6 syd-monster

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Posted 10 February 2010 - 08:40 PM

-3d point at about 88ishHz and then ironing-board flat resp to zip...

Horn?? (you know, the type we "can't" fit in the car :D)
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#7 Pulse-R

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Posted 10 February 2010 - 09:17 PM

bandpass maybe - with cabin gain @ 56Hz
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~Spyne~, on 15 July 2009 - 07:33 PM, said:

gear = wank unless it's installed
Note to self: Install more gear.
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#8 Luke352

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Posted 10 February 2010 - 09:18 PM

Pulse-R, on Feb 10 2010, 07:20 PM, said:

look at the graphs, and guess what this is all about. then decide if I'm on the right track.
(no cheating fury).....

In car simulation or free space simulation?

SCorpion, on Feb 10 2010, 07:51 PM, said:

Ported box tuned high Witt sub playing under unloading frequency?

I would've said similar using a small enclosure to drive the resonant freq's up and then using an ELF controller to use the sub under resonant freq's. We better not mention this principle to Rare, he'll try to tell us it can't work.

syd-monster, on Feb 10 2010, 08:40 PM, said:

-3d point at about 88ishHz and then ironing-board flat resp to zip...

Horn?? (you know, the type we "can't" fit in the car :D )

Possibly, but most of the Horn's i've seen drop off like a cliff at there low end normally 30-40hz, but maybe with cabin gain you could create one to get down to zip maybe???

Edited by Luke352, 10 February 2010 - 09:19 PM.

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#9 Pulse-R

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Posted 10 February 2010 - 09:18 PM

*cackles maniacally*

I couldn't get an actual size pic, so this small one will have to do for now...
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Edited by Pulse-R, 10 February 2010 - 09:20 PM.

http://www.melbourneaudioclub.org.au
http://www.aes.org
MEASQ 2008 National Judges' Choice
MEASQ 2009 Victorian Runner Up - Expert Class, National Champion - Expert Class
dB Drag 2008 Street A: 147.2dB @ 46Hz
VK3TUG - Life's too short to QRP

~Spyne~, on 15 July 2009 - 07:33 PM, said:

gear = wank unless it's installed
Note to self: Install more gear.
TEAM Floor-Pods

#10 Pulse-R

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Posted 10 February 2010 - 09:22 PM

the trick, of course, is to get it to fit into a 380mm space... it seems a 55º baffle will work quite well.
http://www.melbourneaudioclub.org.au
http://www.aes.org
MEASQ 2008 National Judges' Choice
MEASQ 2009 Victorian Runner Up - Expert Class, National Champion - Expert Class
dB Drag 2008 Street A: 147.2dB @ 46Hz
VK3TUG - Life's too short to QRP

~Spyne~, on 15 July 2009 - 07:33 PM, said:

gear = wank unless it's installed
Note to self: Install more gear.
TEAM Floor-Pods

#11 Fury♫

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Posted 10 February 2010 - 09:29 PM

Ruin the fun Simon :P

Can you post enclosure size, group delay, and cone displacement?

Loving the efficiency though, would be up around 100db or so?

#12 HEKYEH

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Posted 10 February 2010 - 09:32 PM

For those of us not as gifted as others in terms of audio related matters...could someone explain in relatively plain English what is going on here....?

The only "dilemma" here for me...is what the frick is going on! :P

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#13 hilux08

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Posted 10 February 2010 - 09:34 PM

was this the one off ebay???? damn you if it was lol

#14 Fury♫

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Posted 10 February 2010 - 09:41 PM

NiDeKCuS, on Feb 10 2010, 10:32 PM, said:

For those of us not as gifted as others in terms of audio related matters...could someone explain in relatively plain English what is going on here....?

The only "dilemma" here for me...is what the frick is going on! :P


All Simon has done is posted a graph of the simulated response of a subwoofer that shows flat response from... 60hz and down.... below 5hz :P

#15 Pulse-R

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Posted 10 February 2010 - 09:44 PM

hilux08, on Feb 10 2010, 10:34 PM, said:

was this the one off ebay???? damn you if it was lol

yes :P~

The problem of course, is how to get it into the box :|

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Edited by Pulse-R, 10 February 2010 - 09:49 PM.

http://www.melbourneaudioclub.org.au
http://www.aes.org
MEASQ 2008 National Judges' Choice
MEASQ 2009 Victorian Runner Up - Expert Class, National Champion - Expert Class
dB Drag 2008 Street A: 147.2dB @ 46Hz
VK3TUG - Life's too short to QRP

~Spyne~, on 15 July 2009 - 07:33 PM, said:

gear = wank unless it's installed
Note to self: Install more gear.
TEAM Floor-Pods
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