91 replies to this topic

[Pulse-R]

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.

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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[SCorpion]

Ported box tuned high Witt sub playing under unloading frequency?

[shiny_car]

MS Paint?

[Fury♫]

tehehehehehe

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

[zion187reigneth]

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"

[syd-monster]

-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 )

[Pulse-R]

bandpass maybe - with cabin gain @ 56Hz

[Luke352]

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 )

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.

[Pulse-R]

*cackles maniacally*

I couldn't get an actual size pic, so this small one will have to do for now...

Edited by Pulse-R, 10 February 2010 - 09:20 PM.

[Pulse-R]

the trick, of course, is to get it to fit into a 380mm space... it seems a 55º baffle will work quite well.

[Fury♫]

Ruin the fun Simon

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

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

[HEKYEH]

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!

[hilux08]

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

[Fury♫]

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!

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

[Pulse-R]

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

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

yes ~

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

other pics - box design in profile:
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GD
 GD1.jpg   98.56K   3 downloads

CD
 CD1.jpg   99.04K   2 downloads

box
 box_design1.jpg   178.31K   2 downloads

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