Dual 8" tapped horn = TH-SPUD - Page 8

kees52 · 9th May 2009, 07:20 AM

Hi all

the th-spud has to be tuned differend that is also tryed by geitmans , so | read horn 1 to the fundamental and horn to to f2 but you can try also f3 or f4 so it will fill up the dips and give 3 octaves like the real spud do who has a very nice spec to 125 hz, maybe horn 2 is to short.

correct me if I wrong.

but still a very good project.

geitmans · 11th May 2009, 06:54 PM

Hi kees52,

I'm indeed from the dutch speaking part of Belgium. I don't think the TQWT is the same thing as this tapped horn.

Sabbelbacke,

There is indeed a 10dB difference but this is also the case with the original as can be seen in this measurement:

Up to now this has not bothered me too much when listening to it. When you will use this in a normal room the room modes may have an even worse effect on the frequency respons. When you install this speaker with a some kind of subwoofer processor you can compensate for room modes and uneven respons of the speaker itself.

kees52 · 11th May 2009, 10:01 PM

here I have tryed the beyma SM110N 10 inch in a tapped horn.

it is a nice plot.

a low vas high fs speaker works best I see.

kees52 · 11th May 2009, 10:04 PM

here the plot.

it is on the wrong place here, sorry..

slisgrinder · 6th June 2009, 12:11 PM

sorry to be impatient, but any updates? also, any schematic with measurements to build it or is it the same one that was posted earlier???

kees52 · 6th June 2009, 01:49 PM

no not the same, this is a one speaker horn.

just to let see what kind of speaker, the beyman is very cool.

I am busy now with my oldtimer car, welding al lot.

gitar speakers works best.

regards

zora · 7th June 2009, 07:53 AM

The other designs seem interesting, but I would like to see the thread focus on the TH-Spud as I am a few days from beginning a build project on two of these clones.

slisgrinder · 7th June 2009, 11:41 AM

I meant for the TH-SPUD clone, is the design the same for it as posted earlier in this thread or has the design changed from the original made by Danley sound labs???

geitmans · 14th June 2009, 01:59 PM

No real progress here. Still haven't been able to measure it outdoors. The problem is really that this thing is too big to handle on your own. It also has to leave the living room as its taking up too much room (Be warned: the WAF of this speaker is below zero) . My goal to build this was more to learn a bit more how the tapped horn behaves in reality compared with simulations and to see what this design was capable off. The best way to start I thought was to use an existing design as a reference. Now I can start thinking of perhaps a smaller design which will fit my needs better.

Annyway, If there is someone from the neighborhood of Antwerp who knows a good spot to do outdours measurements and wants to help me drag the thing overthere please contact me

As for the plans, I based myself on the info which is available on the net. I did make more detailled plans based on this info but I don't want to share these as this is still a commercial design and Tom still has to make a living out of it.

Surely Bassy · 4th July 2009, 11:44 PM

Hi Geitmans,

I have a place to test aloud in Lommel and will help you
haul if you want to.
I don't mind the drive.

I can bring a calibrated Audio Precision ATS-2 too.

Best regards,
Surely.

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9th May 2009, 07:20 AM	#71
kees52 diyAudio Member Join Date: May 2009 Location: Sprang-capelle Holland.	Hi all the th-spud has to be tuned differend that is also tryed by geitmans , so \| read horn 1 to the fundamental and horn to to f2 but you can try also f3 or f4 so it will fill up the dips and give 3 octaves like the real spud do who has a very nice spec to 125 hz, maybe horn 2 is to short. correct me if I wrong. but still a very good project.

11th May 2009, 06:54 PM	#72
geitmans diyAudio Member Join Date: Oct 2002 Location: belgium	Hi kees52, I'm indeed from the dutch speaking part of Belgium. I don't think the TQWT is the same thing as this tapped horn. Sabbelbacke, There is indeed a 10dB difference but this is also the case with the original as can be seen in this measurement: Up to now this has not bothered me too much when listening to it. When you will use this in a normal room the room modes may have an even worse effect on the frequency respons. When you install this speaker with a some kind of subwoofer processor you can compensate for room modes and uneven respons of the speaker itself.

6th June 2009, 12:11 PM	#75
slisgrinder diyAudio Member Join Date: Jun 2009	sorry to be impatient, but any updates? also, any schematic with measurements to build it or is it the same one that was posted earlier???

6th June 2009, 01:49 PM	#76
kees52 diyAudio Member Join Date: May 2009 Location: Sprang-capelle Holland.	no not the same, this is a one speaker horn. just to let see what kind of speaker, the beyman is very cool. I am busy now with my oldtimer car, welding al lot. gitar speakers works best. regards

7th June 2009, 07:53 AM	#77
zora diyAudio Member Join Date: Mar 2009	The other designs seem interesting, but I would like to see the thread focus on the TH-Spud as I am a few days from beginning a build project on two of these clones.

7th June 2009, 11:41 AM	#78
slisgrinder diyAudio Member Join Date: Jun 2009	I meant for the TH-SPUD clone, is the design the same for it as posted earlier in this thread or has the design changed from the original made by Danley sound labs???

14th June 2009, 01:59 PM	#79
geitmans diyAudio Member Join Date: Oct 2002 Location: belgium	No real progress here. Still haven't been able to measure it outdoors. The problem is really that this thing is too big to handle on your own. It also has to leave the living room as its taking up too much room (Be warned: the WAF of this speaker is below zero) . My goal to build this was more to learn a bit more how the tapped horn behaves in reality compared with simulations and to see what this design was capable off. The best way to start I thought was to use an existing design as a reference. Now I can start thinking of perhaps a smaller design which will fit my needs better. Annyway, If there is someone from the neighborhood of Antwerp who knows a good spot to do outdours measurements and wants to help me drag the thing overthere please contact me As for the plans, I based myself on the info which is available on the net. I did make more detailled plans based on this info but I don't want to share these as this is still a commercial design and Tom still has to make a living out of it.

4th July 2009, 11:44 PM	#80
Surely Bassy diyAudio Member Join Date: Jul 2009	Hi Geitmans, I have a place to test aloud in Lommel and will help you haul if you want to. I don't mind the drive. I can bring a calibrated Audio Precision ATS-2 too. Best regards, Surely.

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