I saw all links to the pictures got broken due to a change at my provider. So all pictures can be found here now:
http://s670.photobucket.com/albums/vv68/geitmans/spud/
http://s670.photobucket.com/albums/vv68/geitmans/spud/
I finally managed to do some outside measurements. Thanks to Surely Bassy for the help and equipment.
Here is a picture of the measurement setup:
And the result:
Spl levels should be quite close this time as a calibrated B&K measurement microphone was used.
Flipc, I use inventor as 3D CAD, so it is not a sketchup model
Here is a picture of the measurement setup:
And the result:
Spl levels should be quite close this time as a calibrated B&K measurement microphone was used.
Flipc, I use inventor as 3D CAD, so it is not a sketchup model
Hi geitmans,
Thank you for the additonal data, and thanks to Surely Bassy too!
Great effort.
What was the internal conditon of the sub, and did you have the opportunity to experiment with damping during your measurement session? Also, do you have any impulse response data for this speaker?
Regards,
Thank you for the additonal data, and thanks to Surely Bassy too!
Great effort.
What was the internal conditon of the sub, and did you have the opportunity to experiment with damping during your measurement session? Also, do you have any impulse response data for this speaker?
Regards,
It was indeed a 28.3V /1 m (100W) measurement.
The speaker was with only stuffing in the throath and mouth section. We did try to change the foam but I only brought allong a very small amount of foam and the difference was almost nothing. I don't have a correct impulse respons, due to some software and amplifier problems we only got a print screen of the AP measurement .
The speaker was with only stuffing in the throath and mouth section. We did try to change the foam but I only brought allong a very small amount of foam and the difference was almost nothing. I don't have a correct impulse respons, due to some software and amplifier problems we only got a print screen of the AP measurement .
FYI: An informative DSL SPUD review
http://www.hometheatershack.com/forums/vbfavorites.php?do=add&entry_type=post&entry_id=165157
http://www.hometheatershack.com/forums/vbfavorites.php?do=add&entry_type=post&entry_id=165157
I think this may be it.
I did a little digging on the forum and here is something in that vein:
http://www.hometheatershack.com/for...7-tapped-horn-build-th-spud-2.html#post151858
Mark
I did a little digging on the forum and here is something in that vein:
http://www.hometheatershack.com/for...7-tapped-horn-build-th-spud-2.html#post151858
Mark
Oops! Forgot to check it: http://www.hometheatershack.com/for...369-another-subwoofer-gtg-southern-style.html
Yeah, seems like he posted about it earlier in the this or a similar thread.
GM
Yeah, seems like he posted about it earlier in the this or a similar thread.
GM
I found this link
Danley Sound Labs, DTS-10 " Super Spud" kit and build thread - Page 3 - Home Theater Systems - Electronics and Forum - HomeTheaterShack
I don,t now if it was already here but an nice axample how it is made as a kit.
Danley Sound Labs, DTS-10 " Super Spud" kit and build thread - Page 3 - Home Theater Systems - Electronics and Forum - HomeTheaterShack
I don,t now if it was already here but an nice axample how it is made as a kit.
yes the only differend is 12 inch and not 8 inch.
and just one exit, but you can see the stuffing maybe you can use that idee in the th spud.
They are dimensionally different as well, so are not the same design at all. All they have in common is Tom designed them and they are both TH.
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