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Old 26th May 2012, 03:56 PM   #1
FE3T is offline FE3T  Norway
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Default New waveguide for 1"+ tweeters

Recently found a Waveguide in a Swedish netshop and ordered a pair. (link to the manufacturer)
They are claimed to be made for 1" tweeters with a 94mm bolt circle.
But they are made in such a way that i was able to attach a Audax TW34XO to it and cobble up a quick and dirty test setup.
I think its promising, but if anyone with measuring gear think these are interesting, and find them cheap enough to experiment with them. i would love to see some graphs.
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Old 26th May 2012, 04:27 PM   #2
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Interesting subject.
How to construct a elliptical waveguide for a tweeter?
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File Type: jpg visaton wg220x150.jpg (81.9 KB, 632 views)
File Type: jpg visaton studio1.jpg (49.2 KB, 731 views)
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Old 26th May 2012, 04:33 PM   #3
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Hi , sorry , but , how can you attach a 34 mm tweeter to a 25 mm hole
I know they are cheap and ready made , but I preferred to make myself some WGs with dead speakers ; also the cheap elliptic ones taken from Tv near the trash are good .
They allow an enhancement in sensitivity in the lower range reproduced by the tw , till the mouth opening allows . This allows ( again ! ) to make a simpler crossover , also a single cap , depending on the project / design
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Old 26th May 2012, 05:09 PM   #4
FE3T is offline FE3T  Norway
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Quote:
Originally Posted by picowallspeaker View Post
Hi , sorry , but , how can you attach a 34 mm tweeter to a 25 mm hole
I know they are cheap and ready made , but I preferred to make myself some WGs with dead speakers ; also the cheap elliptic ones taken from Tv near the trash are good .
They allow an enhancement in sensitivity in the lower range reproduced by the tw , till the mouth opening allows . This allows ( again ! ) to make a simpler crossover , also a single cap , depending on the project / design
If you visited the link you would have found measurements.
The hole in the WG are actually 38mm (dont ask me why) and covers about the half of the suspension on the TW34XO. this suspension have more than 2mm clearance to the mounting plate of the WG so no problems there either.
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Old 26th May 2012, 06:07 PM   #5
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I have searched the site and do not find the price or how to order.

Can you provide some direction?

I have posted an inquiry to Visaton.

Last edited by Ed LaFontaine; 26th May 2012 at 06:21 PM.
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Old 26th May 2012, 07:32 PM   #6
FE3T is offline FE3T  Norway
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Quote:
Originally Posted by Ed LaFontaine View Post
I have searched the site and do not find the price or how to order.

Can you provide some direction?

I have posted an inquiry to Visaton.
Sorry about the delay.
Solen sells Visaton drivers, and even if this particular WG are not in their sortiment, it migth be so that they can get some if asked.

I bougth mine from Ljudia in Sweden
And paid about 25$ each + shipping for them, but if they even sell to the US, shipping migth be a dealbreaker in your case.
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Old 26th May 2012, 11:53 PM   #7
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Its a shame they made it with a rectangular mounting plate that is wider than a typical baffle for 6.5" woofer. Poor design decision.
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Old 27th May 2012, 12:10 AM   #8
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No samadhi, for what I understand the decision was not a 6.5" but a 5" and an 8". Maybe you will be happy with a different one.
Visaton - Lautsprecher und Zubehör, Loudspeakers and Accessories
Visaton - Lautsprecher und Zubehör, Loudspeakers and Accessories
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This Waveguide was adjusted in width and length to 13 cm (e.g., AL 130 8 Ohm) and 20 cm (e.g., AL 200 8 Ohm) loudspeakers.
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Old 27th May 2012, 12:51 AM   #9
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Originally Posted by Inductor View Post
No samadhi, for what I understand the decision was not a 6.5" but a 5" and an 8". Maybe you will be happy with a different one.
Visaton - Lautsprecher und Zubehör, Loudspeakers and Accessories
Visaton - Lautsprecher und Zubehör, Loudspeakers and Accessories
Its too small for a good directivity match with an 8"woofer.

It needs to be turned sideways for use with a 5" woofer, such that the rectangular face makes driver spacing too high.

The wide rectangular face makes no sense, atlease make it a spherical waveguide if you go that route.
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Old 27th May 2012, 12:07 PM   #10
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Originally Posted by samadhi View Post
Its too small for a good directivity match with an 8"woofer.
If the directivity match gets better than if a bare tweeter is used, its doing its job (are the WG`s Troels use in combination with the TW34XO really that much bigger?)

Quote:
Originally Posted by samadhi View Post
It needs to be turned sideways for use with a 5" woofer, such that the rectangular face makes driver spacing too high.
99,9% of the manufacturers use bare tweeters with midwoofers smaller than 6-7", and i wouldnt be too surpriced that even most of the DIY`ers who find these interesting are planning a 2 way with an 8" or if they are really adventurous even a 10"

Quote:
Originally Posted by samadhi View Post
The wide rectangular face makes no sense, atlease make it a spherical waveguide if you go that route.
With an 8" wich i see as the intended combo, it makes perfectly sense,
the only dravback i se with the shape are the extra trouble of countersinking it in a baffle with a router, this i dont fear, since i have access to an industrial milling machine wich should do the job more easyli.

The main reason i defend this product are that it is aviable for a price i am willing to pay for an item for experimentation, Troels WG who probably are better are NOT aviable for such a price
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